Guppys dying

[Guppyguy]

I have a question... ) my fish are dieing one after another after another . They all had red marks or their tail was wrecked. What types of diesese might be in my tank?

 

[juliethegr8t]

Guppyguy - have you checked your water parameters and are your fish showing any other signs of stress, ie: gasping? It's possible your fish could be suffering ammonia poisoning. Check your water and let us know your levels - then we may be able to help you out more