LeaElizabeth423
Aquarium Advice Regular
I don't know what happened honestly but all my male fish died after moving them into their own aquarium! I cleaned a filter with a rag that was clean and put it on the tank to use as an extra filter with the filter I already had. Then the next day I turn my light on my tank in the morning and see ALL BUT 3 of my male fish died. I moved them into my other tank back with the females trying not to get any of that water in my other tank but some did get in now my fish are acting like they are dying now. I need to stop this. What do I do? I can't find anything on Google. I've lost enough fish from whatever was in that rag and need to know how to make filters, ornaments, water, and everything safe again!