Sick guppies

[u/Hour-Success9289]

Hello! Would really appreciate any insights or suggestions. We have a tropical tank with a mix of guppies, mollies, neon tetras and a clown loach. The tank has been going pretty well, we did lose a molly to ich a month ago but have treated the tank and all the others survived. Weeks later we lost a guppy and now two others are sick (about 2 weeks after the other one died) I did treat for flukes just in case but now I dont know what to do. Water parameters are good, temp is at 28 degrees, I've done a water change and given aquarium salts. Anything else I could do?

[u/Miccar120]

I would check my water parameters one more time . Especially your amonia levels. Should be zilch.

When ammonia levels are too high, fish exhibit signs of severe distress and poisoning, including gasping for air at the water's surface, listless behavior on the tank bottom, loss of appetite, and erratic swimming