- Reaction score
My fish are all dying one by one and I don't have a clue as to why. I have 3 tanks: 30, 16, and 44 gal. They are dying in all 3. I've lost all of my guppies, burmese border loaches, rosey barbs, threadfin rainbows, balloon (fat belly) mollies, and 4 of 6 Bosemanis rainbows. In my 30 I have neons, a Betta, Danios and a gold nugget Pleco that all seem fine. My 16 now has only 1 Balloon molly left. My 44 has 2 angels, 3 upsidedown catfish, 2 clown plecos and 3 clown loaches that all seem fine. The 2 remaining Bosemanis look aweful (losing color and not moving much) and I have a school of harliquin rasboras that seemed fine but today they are all at the bottom and have all lost their color. None of the fish I've lost have had any sign of disease. They just suddenly start swimming eradically then lose their boyancy control (start floating all over) then die within a couple of hours. I do water changes 25% each week and the tanks have been set up for 2 years and I've never seen anything like this. I spoke to my aquarium shop and brought in water samples and they couldn't find anything wrong with the water (ammonia and nitrites - zero, nitrates-5ppm) They suggested raising the temp to 84 degrees, adding salt, and changing the carbon - which I did. But they are still dying. I've lost almost 20 in the last week. ANY ideas would be greatly appreciated. Please help.