my fishes are starting to die I don't know why help
I have a freshwater fish tank I had 6 in total 3 died yesterday they were 2 columbain shark 3 -2 inches and one lyretail guppy 1 1/2 inches. The one that are alive are flame dwarf gourami 2 inches and a gold gourami 1 1/2 inches and a pleco-common 3 1/2 there going over stress I don't know why. I got a oxygen pump yesterday . I need help. Each one are on each corner . My pleco is on top of the water on the glass but he's not that active no more like he use to be.
I have a freshwater fish tank I had 6 in total 3 died yesterday they were 2 columbain shark 3 -2 inches and one lyretail guppy 1 1/2 inches. The one that are alive are flame dwarf gourami 2 inches and a gold gourami 1 1/2 inches and a pleco-common 3 1/2 there going over stress I don't know why. I got a oxygen pump yesterday . I need help. Each one are on each corner . My pleco is on top of the water on the glass but he's not that active no more like he use to be.