In the last few months a couple of my old female guppies past on, I though nothing of it thinking they were just old. A couple of days ago I noticed one of the female guppies in a weird position near the surface of the water, there was no difference in her breathing so I though she might just be sleeping. I stuck a finger in my tank and she darted off, but when I fed the fish that evening she didn't even try for the flakes. Alas the next morning I found the ol' girl lifeless at the top of the tank. New developments have made me really worried though. Now a couple of my platys are showing the same behavior. They sit near a corner at the top of the tank with their foreheads at the surface and their tails curved downwards. The tank is planted with added CO2. I do water changes every 3 weeks to every month. Here are my parameters:
pH: 7.0
Hardness: Notsure, doing a 1/3 tap with 2/3 bottled...yes I am using dechlorinator.
Ammonia: between 0 and 0.25
I do not have a test kit for nitrates and nitrites yet.
I did add a zebra and a pearl danio a few weeks ago, could the be stressing out my fish? They don't chase them but they are quick.
pH: 7.0
Hardness: Notsure, doing a 1/3 tap with 2/3 bottled...yes I am using dechlorinator.
Ammonia: between 0 and 0.25
I do not have a test kit for nitrates and nitrites yet.
I did add a zebra and a pearl danio a few weeks ago, could the be stressing out my fish? They don't chase them but they are quick.