With great joy I join your schoal!
I am a newbie aquarist with a used 50 gallon aquarium set up for freshwater fish. I chose corys, neons, bloodfins, ottos, and flames together in small schools as well as a lovely pair of baby angels. I also have live plants. My tank has been set up for about 3 months and I have enjoyed it greatly. I can't imagine having home without an aquarium!
Unfortunately, I found this wonderful site in a frantic search to find a solution to my recent aquarium woes. I went on an emergency family visit for a week and had some one watch my tank while I as away. When I returned, one of my corys was missing and one died two days later. I tested the water and found nothing wrong but that the pH was high (went from 7.1 to about 7.6). I changed the peat in my filter and it has dropped back down to 7.1. Now, after another week, I have a neon that has been losing color for a few days. Tonight, after several experienced aquarists said to destroy the fish, I sadly did so.
The problem is that no one has come to look at the tank to tell me what could be wrong! Are my other fish in danger? I was told that I must not be taking care of my tank, but I assure you that I do weekly water changes and also test my water at that time. I may be new to the hobby, but I have pruchased and read at least 5 books on setting up aquariums before and after I set one up. The fish were put in the tank very slowly and the angles were the last added over one month ago. I had 32 fish in all. 4 groups of 5 and 10 neons, plus 2 tiny angels. Now I am down to 29 fish since I lost the 2 corys and 1 neon.
I have ruled out ick after treating for it when I found the dead cory. The neon I destroyed was growing pale but still acting pretty normal. He got a little thin and began to hide so I was told to get rid of him asap.
Any help for the rest of my tank would be greatly appreciated.