My son got a 5 gallon tank for Christmas from my dad, and we bought an algae eater, a silver dollar, and 3 small sharks. We had them one week, one shark died, then 2 days later another shark died, and the silver dollar died today. The shark that died 2 days ago had ich, and the silver dollar had it also. I bought something to treat it, but it obviously didn't help. After the 1st fish died, I changed the water because it was brown and smelled real bad, but the water has been clear since then. I kept the water around 72 degrees, and I got a heater last night, and it has raised the temp to about 75. What am I doing wrong?
Mindy
Mindy