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dmheath
07-19-2004, 4:39 AM
Hi, I am having a serious problem here. I have a 75 gallon freshwater tank, had 30 fish, ranging in size and type, flourishing very well for about 4 months, then all of a sudden I see my fish start to develop what I later found to be ICK, cloud eye, and cotton mouth. All of my fish died except 1 angel fish. I purchased the meds to treat ICK, cloudy eye and cotton mouth. Treated as directed and finally did a 50% water change. I even took out the fake plants and cleaned them in boiling water and vacuumed the gravel. I then treated the tank like you should with water changes, added Stress Coat, water conditioner, and biological suppliment. I then went and purchased 10 more fish, 3 goldfish, 3 bottom feeders (not sure proper name) 2 Bali sharks, and 2 algae eaters. Within 4 hours of adding the fish, 1 goldfish died, I assumed it to be from shock or something. Then when I woke this morning, 1 more goldfish, 1 bali shark, and 2 bottom feeders were dead. When I came home from work, the other bali shark, the last bottom feeder, and it looks like 1 algae eater has died. I do not see the signs like whith ICK, cloud eye, and cotton mouth. Please someone help me out on this. All of my tests show my water is within tolerance (nitrite, nitrate, ammonia, an PH).

OrionGirl
07-19-2004, 9:03 AM
What are the test results, specifically?

First--goldfish are not tropical fish, and should not be in with tropicals. The temp difference is very high, and will kill the fish. Please take them back.

Second--adding that many fish--depending on the 'biological supplement' used--can seriously overload a tank that has been through some massive instabilities. The biological filter dies off with no food, and adding a bunch of fish easily overwhelms it. Very, very few of the products sold to supplement biological filtration are effective--most introduce bacteria that will not thrive in an aquarium. So--what brand did you use? I'd encourage you to keep testing and make water changes as needed.

Third--let the tank stabilize before adding anything else. Use this time to research some fish that interest you, to see if they are compatible.