help my fish are dying

redlessi

One of my danios died saturday after looking a little crooked, limp and not swimming like normal for 2 days. Yesterday I noticed 2 guppies looking the same. I removed one from the tank as he looked worse. Last night the one I left in the tank died, he looked limp and was not swimming around and just floated upside down and died. This morning another one looked bad, so it is now in with the one I already took out. Neither look good.

My water was partially changed sat, yesterday was 0 nitrite, 0 ammonia, 20 nitrate. Last night I found a big nasty fly stuck on the filter that was a little fuzzie, must have been there for a while. Dont know what to do. When the danio died someone suggested Neon Tetra disease?????????

Any suggestions????????

redlessi

another one died now there is just one in the container. one more in the tank looks strange now...........
any suggestions to whats going on??????????

redlessi

Just an update since I last posted here I only have 2 female guppies left along with my other fish and eveyone looks fine for now.