On Wed, 17 Aug 2005 15:53:48 +0000, marmot wrote:

Hello, I'd be very grateful for any advice:
I have lost nearly all my fish (25 or so) to a disease - most have
large open sores, but some appear to have no visible symptoms.

Hi Marmot,

Filling out the sick fish form below would really help, that way we see the
Big Picture and have all the information in one post:

Sick Fish or Sick Pond Form (Please reply under the question, do not
delete questions, leave them blank if you don't know).

Please describe your problem, including fish characteristics, like;
whirling, flashing, gasping at surface, wounds, etc.:

Pond Size in Gallons? (litres*.26=US Gallons):

Water Source (Well, Irrigation, City?)
If City how is water treated?: =

Time in Operation?
(How old is the pond/water?):

Liner type? (EPDM,PVC,RUBBER,Cement/Concrete etc):

Fish Population?
Type? Size? QTY, Time in Pond:

Food? Type and Frequency of feedings.:

Pump Type, IN/OUT of pond, GPH etc
(Describe your filtration system as well as possible):

Prefilter media type? Last cleaned?:

Filter is BIO or Mechanical? Last cleaned? How?:

Carbon added? How much? When last changed?:

Aeration? Waterfalls? Bubblers?
Venturies?:

Water Temp?

pH?:

KH?:

Ammonia (ppm or mg/l):

Nitrite (ppm or mg/l):

Nitrate (ppm or mg/l):

Water Color, cloudiness, odor?:

Water changes? (% of pond volume and how often):

Additives used (water conditioners etc):

Tests done by self or another?:

Weather (what's it been like lately?):

Medications used?:

What Zone or Country of residence?:

~ jan

See my ponds and filter design:
www.jjspond.us

~Power to the Porg, Flow On!~