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I just did some checking; I'm not that familiar with Velvet, but it
seems the spots on fish are a golden color rather than white... Otherwise it does seem to somewhat match the symptoms you describe. I still think there was a bacterial problem as well though. Here's a link for Velvet Disease information: http://freshaquarium.about.com/cs/disease/p/velvet.htm One thing the site says that I question: "Like Ich, Oödinium is present in most commercial tanks"; I don't know much about Oödinium (the Velvet parasite) but every scientific report I've read about Ich says it dies off if it can't find a host... Maybe in COMMERCIAL tanks it's present, because they're always introducing new fish into them. And as for Oödinium (Velvet) the same article also says "They must find a host within 24 hours, or die." So again I ask, if it's in your tank, where did it come from? Fedor wrote in message ups.com... Is it White-spot, Velvet, or both? I have three fresh water tropical tanks One 45 litre shallow tank for growing on corydoras and Ancistrus fry One 70 litre tank which will be home to my Ancistrus so they can breed in peace, but currently houses an assortment of tetras. One 170 litre heavily planted tank with a large piece of mopani wood and 2" deep, fine gravel, which is my 'show tank' , and contains; 2 ancistrus (7 years old) 3 albino corydoras(1 year old - 1.5" long) 3 clown loaches (5 years old - 3" long) 2 upside down catfish (5 years old - 2" long) 1 whiptail catfish(7 years old) - 4 " long) 2 siamese flying foxes (2 years old - 3" long) 8 congo tetras (6 months old - 2" long) 6 bleeding heart tetras (1 year old - 1.5" long) Nitrites 0 Nitrates 0 Ph 7.2 Gh 160 Kh 140 Temp 24 (75) (the tap water is virtually the same as my aquarium) I have not lost a fish in four years (and hardly had any illnesses at all), the catfish are spawning regularly and I successfully raise the fry and sell them. All the other fish were in peak condition and regularly display courtship behaviour. I feed flake food and catfish pellets once a day, with frozen bloodworm and brineshrimp once or twice a week, and the odd garden pea or courgette for the catfish. I don't use CO2, the light is on a timer for 10 hours a day, and I use a liquid plant food once a week Waterchanges are once a week and I change roughly 12%, gently cleaning the filter. For several months I have not gravel vac'd much of the substrate as all the bottom-feeding fish and numerous malasian trumpet snails keep it pretty clean and the plants are fairly thick. I use cold treated water to re-fill the aquarium which helps to trigger spawning. For several weeks I have noticed one fish or another flash against a plant or rock - just once, every now and then. So I have been watching closely for white-spot, but seen nothing else to signify its presence. About four weeks ago one of my albino corydoras suddenly became ill. She developed blood under the skin on her back and became very listless. I removed her to one of the tubs I use for newly hatched fry, and went to the cupboard for my interpet anti-internal bacteria treatment. The bottle was empty - it had all leaked out. Wondering what to do I decided to briefly bath her in Methylene blue and then add some human amoxicillin to the water in her tub (this was the first time I had tried doing this - and you cannot buy fishmox in the UK) The next day she was the same, I went out and bought some interpet anti-internal bacteria treatment, changed her water and added the medication. Over the next couple of days she got worse, lost all ability to balance or swim and her skin and fins began to rot badly - eventually I put her out of her misery using a 25% dose of top quality Gin which I have read about on the web (again something I have never had to do before, she died pretty peacefully 30 minutes later) Still thinking this was a bacterial infection I treated the show tank just to be safe. Two weeks went by with no further illness, then I started noticing an increase in the number of visible trumpet snails in the tank and I realised I had not seen the clown loaches for a couple of days, then I saw white salt-grain sized spots on the bleeding-heart tetras - just a few, mostly on the tails. Thinking I knew what was going on I did a 30% waterchange (warming the added water) and dosed the tank with interpet anti white-spot, which I got from my cupboard. I increased the temperature to about 80 degrees, and turned off the light. The medicine must have been four years old and after a couple of days it became clear it had had little or no effect. I went out and bought a new bottle and on day four of the treatment I added a full dose of the new stuff. By now all the bleeding heart tetras were badly covered in salt-grain white spots and were hanging near the surface, not eating and clamping their fins, their gills and mouths were moving very fast, and some were developing secondary bacterial infections, I added 250 milligrams of amoxicillin to the tank to try and combat the infections. The clown loaches were now out of their hiding place but looking very ill although they had only one or two white spots each, they actually looked more like they had got velvet, but it was very subtle. The next morning two of the tetras were dead.Next day two more died, and the last two died the following day. By now I was wondering if it could all be velvet and maybe it just looked like white-spot on the bleeding heart tetras? Could that have been why neither dose of white spot medication seemed to help? I did a 50% water change and added a carbon filter for 24 hours, the next day I did a 30% water change, removed the carbon and treated the tank for velvet (again using interpet product) The clown loaches were listless, not eating, not moving around much and by now looking pretty velvety, they were breathing fast, and lying around on the gravel. They also had a couple of the white-spots each here and there. Two days later and two of them were dead. As I write this the last one is lying on the gravel upside down looking as though it will die. It is four days since I added the velvet meds, I have just done a 50% waterchange and thoroughly vac'd the gravel (I read on the web that by removing as many spores from the gravel as possible you help to halt the progress of the parasite - makes sense once you think of it) I have re-filled the tank using warm water and added a half-strength dose of velvet medication Up til now none of the other fish have been affected at all, however one (not both) of my upside down catfish is now covered all over in small (salt-grain size) yellow blobs - not spheres like with the white- spot, more like tiny pustules. Could this be another way for velvet to manifest itself? Can anyone please tell me the following...... What do you think was wrong with the original corydoras? The bleeding heart tetras? The clown loaches? And now the upside down catfish? Could this have all been velvet? Do you think I had velvet and white spot all at once? Why does none of the medication I have used seem to have worked? What can I do to stop this now? Thanks for any help Chris Nuttall |
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Thanks for the reply - i had not considered that it could all be
bacterial I am going to remove the upside down catfish and treat elsewhere as it is now the only sick fish left alive. It now has a yellow dusting on its flanks as well as the spots - i am at aloss really with so many different symptoms all at once. By the way the zero nitrates is indeed a mistake, they are about 30ppm. chris |
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![]() wrote in message oups.com... Thanks for the reply - i had not considered that it could all be bacterial I am going to remove the upside down catfish and treat elsewhere as it is now the only sick fish left alive. It now has a yellow dusting on its flanks as well as the spots - i am at aloss really with so many different symptoms all at once. By the way the zero nitrates is indeed a mistake, they are about 30ppm. =========================== You can bring in parasites on new aquarium plants. Did you happen to buy a new plant? -- RM.... ~~~~ }((((* ~~~ }{{{{(ö |
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YES!
i added some new plants recently - not too long before the first fish got ill - do you think that's it? Having read that ick and velvet only survive a few hours or a couple of days at most without a host fish i had discounted that idea, the LFS keeps aquarium plants in shallow water-filled trays which are unheated, not sure if the lack of heat would kill the parasites or simply slow down thier life cycle so they last longer. which parasites could it be? chris (The upside down catfish is hanging in there with his yellow spots and dusty areas, not gilling too fast and not listless at all.) |
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![]() wrote in message ups.com... YES! i added some new plants recently - not too long before the first fish got ill - do you think that's it? It sure sounds like it to me. I quarantine plants and treat them with QuickCure or AquaSol. Having read that ick and velvet only survive a few hours or a couple of days at most without a host fish i had discounted that idea, the LFS keeps aquarium plants in shallow water-filled trays which are unheated, not sure if the lack of heat would kill the parasites or simply slow down thier life cycle so they last longer. It would slow the life cycle but they'd still need a host to survive. Are there any fish at all in the trays? which parasites could it be? That I couldn't tell you. chris (The upside down catfish is hanging in there with his yellow spots and dusty areas, not gilling too fast and not listless at all.) I hope you're treating them with something for parasites?!?!?! I like QuickCure but it may not be safe for any loaches in your tank. -- RM.... Zone 6. Middle TN USA ~~~~ }((((* ~~~ }{{{{(ö |
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I'm not sure that it is ALL bacterial, but the fin rot and bloody
patches certainly indicate bacterial activity. I read your later posts also... The gold spots and dusty patches that you mention do sound like Velvet (I have never had it in a tank but I have had White Spot once and I do not want it again; all I know about Velvet is what I read online about it). Bacteria are always present, and if a fish is weakened by a parasitic invasion, the bacteria will use the opportunity to also invade. Most all "pests" as such are opportunistic in this way. This is why the best defense against such attacks is to do what you can to constantly keep the fishes immune systems strong and keep the fish as healthy as possible. Plants should only be purchased from tanks that do not have fish, and it sounds like that was the case with yours, but perhaps they had been in contact with infested fish or tanks at some point before you got them? I don't know, it's just a thought... But once your tanks/fish have been healthy for a period and nothing new has been added, there should be no Velvet or White Spot parasites in your tank (or course there will always be bacteria). The only way to be safe is to quarantine all new additions (fish and plants) for longer than the parasites life cycle. Since I do not have a convenient way to do that, my practice is to avoid introducing anything new into my tank, no matter how much I'd like to. When I do have to for some reason, I'm always worried about it. The one time when I did get White Spot (many years ago) I had added two Plecostomus catfish. My tank is not planted anymore so I don't have that to be concerned with. One thing you can do in the future is to remove any sickly acting fish immediately to a hospital tank before the bacteria can spread, and you can always expect a bacterial attack at some point as the fish is stressed/weakened by parasites or other maladies. The number of bacteria in the water has a direct relationship on whether the fish can fight it off or not. Too many bacteria and they become overwhelmed. It is also important to know and understand the life cycles of parasites and to be able to identify them. A big part of my enjoyment of aquaria has been in reading about fish diseases, parasites, anatomy, behavior and other scientific and technical materials on web sites and it has also been handy to know these things at times. I save web articles on my PC that I think may be useful in the future, especially about diseases, in case I may encounter any and have need to identify them and attempt to effect a cure. When you think about the threats from bacteria and parasites, combined with keeping fish in such small close-quartered environments as our tanks are, it is almost asking for trouble, in some ways. One must be diligent and even then things can happen. Fedor wrote in message oups.com... Thanks for the reply - i had not considered that it could all be bacterial I am going to remove the upside down catfish and treat elsewhere as it is now the only sick fish left alive. It now has a yellow dusting on its flanks as well as the spots - i am at aloss really with so many different symptoms all at once. By the way the zero nitrates is indeed a mistake, they are about 30ppm. chris |
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Fedor,
Thanks for your replies - it is good to have someone elses thoughts when you are unsure what is right or wrong. i have posted this on yahoo groups but everyone there only seems interested in arguing! I am begining to form an idea of how it may all have gone wrong The tank was overstocked, i never cleaned all the gravel, and i regularly added cold water to get the catfish to spawn. These things together would have had an effect on the fish even though they all looked great, then i added some plants, some of which i know were from a regular customer at the LFS who has a CO2 setup at home, he brings in plants when he has too many and the guy at the fish shop sells them (actually he gave me a load to keep me sweet because i supply him with catfish) anyway, i think i remember him saying that the guy had just brought the plants in recently - this would mean that parasites may have still been ailve on them or in their water. I think that the corydoras died of an infection called red pest, possibly brought on the the attack of parasites, the others developed parasite infestations later and their bacterial infections were as a result of this. The thing is now i need to get rid of the parasites which i believe to be velvet and white spot at the same time. Do you know of a treatment for both together? I have read about copper which is used for ridding a tank of snails, but i dont like the idea of it, it is a poison. And it would damage my plants. There is also methylene blue but it will have side effects too and i don't know how effective it is. Like you i subscribe to the idea of minimal intervention, letting nature (such as it is in a fish tank!) look after itself, so i may just keep on removing sick fishes, changing the water, cleaning the gravel etc etc and hoping the fishes iminutiy in the main tank takes care of it If anyone does know a way of dealing with white spot and velvet at the same time please share it with me Thanks chris |
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![]() wrote in message ups.com... If anyone does know a way of dealing with white spot and velvet at the same time please share it with me ========================== Google tropical+fish+diseases. These parasites aren't going to go away on their own. For white spot aka ick, I use QuickCure or AquraSol. I don't remember my fish ever having velvet. I'm sure you will find much information on the web for treating velvet. -- RM.... Zone 6. Middle TN USA ~~~~ }((((* ~~~ }{{{{(ö |
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RM
there are no fish in the trays in the LFS, they are small unheated plastic trays on the floor (sounds terrible but it is actually a really nice shop) if the cold water slowed the life cycle down enough then maybe the parasites survived long enough there? i think it could have been less than 24 hrs I am treating the upside down catfish with interpet anti slime and velvet - he has fewer spots than yesterday, he looks paler than his healthy companion but otherwise he is acting fine - dare i say it but he might be the only fish to have got ill and recovered No need to worry about the loaches in the main tank as they are all dead now ![]() had them for five years - a little sad really I have spent every spare minute for the last few weeks googling velvet and ick, you may not apreciate it being in the US but most of the content on the web originates there. which means that a lot of what i am reading talks about US-only medication which i can't buy, but i am learning quite a lot all the same. I emailed the federation of british aquatic societies and they were extremely helpful, i hope they dont mind me sharing....... Here is his reply to my original post with my further questions and his further answers 1. Occasional flicking is normal. didn't know that - thanks 2. The cory possibly had "red blotch disease". Not sure of cause - I reckon bacterial. Cory expert Ian Fuller treats this using Melafix (made by API). I had read about a bacterial infection called red pest, possibly the same thing - i will buy some melafix asap 3. Bleeding heart tetras get a specfic viral infection that looks like Lymphocystis (small whitish blobs)- no cure, and prob. triggered by stress. Didn't know that either, it would explain why my congo tetras have been unaffected by the white spots and why it didn't respond to white spot treatments - does it look exactly like white spot? See attached picture taken by myself. 4. Amoxycillin isnt much use on fish as it treats gram-positive bacteria, whereas most major bacterial problems of ornamental fish are gram-negative. Be aware that antibiotics sold for humans can be different formats as those sold for use on fish. Some formats contain additional chemicals that can be toxic to fish. Wasn't sure about doing this, it was a bit of desparation 5. Sudden emergence of snails plus fast gill beats in fish suggests to me low oxygen problems, which could be root cause of the latter deaths. I had attributed the increase in snails to the clown loaches no longer eating them - could lack of oxygen be due to the illnesses / medication in the water? I guess the treatments may have upset the bacterial flora of the aquarium, causing a proliferation of oxygen-consuming bacteria? But low oxygen might reflect accumulating organic wastes in the gravel, resulting in increasing "BOD" (biological oxygen demand) which eventually reached a critical level. Hard to say. The picture of bleeding heart tetra virus looked like a fluffy fungus - not what mine had, i think it was ick. perhaps i just treated it too late Thanks for your help - i genuinely apreciate it chris |
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![]() wrote in message ps.com... RM there are no fish in the trays in the LFS, they are small unheated plastic trays on the floor (sounds terrible but it is actually a really nice shop) if the cold water slowed the life cycle down enough then maybe the parasites survived long enough there? i think it could have been less than 24 hrs I am treating the upside down catfish with interpet anti slime and velvet - he has fewer spots than yesterday, he looks paler than his healthy companion but otherwise he is acting fine - dare i say it but he might be the only fish to have got ill and recovered Well that's good news. :-) Make sure you keep his water pristine and well oxygenated during treatment. No need to worry about the loaches in the main tank as they are all dead now ![]() had them for five years - a little sad really Oh no! :*( Next time you need to treat the plants before adding them to your tank. Put them in some tank water and a very bright place, or use a light over them. Keep them warm to hatch out any parasite cysts.... and add the medication as you would if treating a fish with parasites. I too have brought home "problems" with new plants in the past. I have spent every spare minute for the last few weeks googling velvet and ick, you may not apreciate it being in the US but most of the content on the web originates there. which means that a lot of what i am reading talks about US-only medication which i can't buy, but i am learning quite a lot all the same. I emailed the federation of british aquatic societies and they were extremely helpful, i hope they dont mind me sharing....... They are probably happy you share any information the give you if it helps save fish lives. I think what you call "red blotch" is what we call "contagious ulcers" a condition caused by bacteria that is almost impossible to treat. It wiped out my entire pond back in the late 1990s. :*( Here is his reply to my original post with my further questions and his further answers 1. Occasional flicking is normal. didn't know that - thanks 2. The cory possibly had "red blotch disease". Not sure of cause - I reckon bacterial. Cory expert Ian Fuller treats this using Melafix (made by API). I had read about a bacterial infection called red pest, possibly the same thing - i will buy some melafix asap 3. Bleeding heart tetras get a specfic viral infection that looks like Lymphocystis (small whitish blobs)- no cure, and prob. triggered by stress. Didn't know that either, it would explain why my congo tetras have been unaffected by the white spots and why it didn't respond to white spot treatments - does it look exactly like white spot? See attached picture taken by myself. 4. Amoxycillin isnt much use on fish as it treats gram-positive bacteria, whereas most major bacterial problems of ornamental fish are gram-negative. Be aware that antibiotics sold for humans can be different formats as those sold for use on fish. Some formats contain additional chemicals that can be toxic to fish. Wasn't sure about doing this, it was a bit of desparation 5. Sudden emergence of snails plus fast gill beats in fish suggests to me low oxygen problems, which could be root cause of the latter deaths. I had attributed the increase in snails to the clown loaches no longer eating them - could lack of oxygen be due to the illnesses / medication in the water? I guess the treatments may have upset the bacterial flora of the aquarium, causing a proliferation of oxygen-consuming bacteria? But low oxygen might reflect accumulating organic wastes in the gravel, resulting in increasing "BOD" (biological oxygen demand) which eventually reached a critical level. Hard to say. The picture of bleeding heart tetra virus looked like a fluffy fungus - not what mine had, i think it was ick. perhaps i just treated it too late Thanks for your help - i genuinely apreciate it chris -- RM.... ~~~~ }((((* ~~~ }{{{{(ö |
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