Always had cyano problems, and more recently dinoflaggelates. The cyano seems
reduced, but the dino is going strong.

-I've always run an excellent skimmer (AquaC Remora, on my 46 bowfront)
-I alwasy thaw frozen food in fresh RO water, never tank water
-Always use Instant Ocean.
-Have tons of water current.
-Frequent water changes with RO.

So the only recommendation I havent tried here is the salt. And I gotta say,
I'm skeptical. I'm not saying you're not right, I'm just saying I see no basis
for that doing anything. Who knows, tho.

One thing that made my blood go cold when reading your post is about your sand
bed. I'm planning to switch from crushed coral to DSB shortly, and I was under
the impression cyano wont adhere to sand. You cant vaccum a sand bed so how
in blazes do you clean it?!?!? Now I'm thinking I'm just gonna be buying into
more hassles of having a sand bed thats 10 times harder to clean than my CC.
*sob*

You didnt mention what your nitrates have been thru this. All recommendations
on helping my tank (none of which have worked) are geared towared reducing
nitrates. But,ya know, my nitrates are around 20-40ppm. Thats not excessive.
Although I will say my dinoflaggelates showed up shortly after my nitrates
tested off the scale when I noticed erratic fish behavior, so I did a quick
emergency 30% water change. (and nitrates have held at 20-40 ever since).

Well, maybe someday, I'll get to post a success story like this myself :-)

Bobby Bhamra wrote:


So in summary, if your having problem with Cynobacteria try ...
1. Get yourself a better skimmer
2. Wash your frozen food
3. Use different salt (and change brands every 6 months)
4. Significantly increase water circulation and flow
5. Do frequent water changes with RO

Trust me with a little patience it will go!

HTH

Bob