bernadette616
New Member
I have a 25gallon tank with a bio wheel 330 cc and started with six damsels on tues. This morning 2 fatalties. The lfs said the ammonia must be starting to rise. It's only been a couple of days. So I did do an ammonia test and it was already up to 4.0 the ph is fine, and the nitrate and nitrites are 0. It's looks like there is another one on the way out. Is this how it's supposed to go? When they die in the tank doesn't that disturb the chemical balance? And if they all die then do I just replace them?