Having a crisis and am completely at a loss of what to do. I am running a 70gallon cube tank with a eheim ecco pro canister filter, a 30" bubble wall in the back of the tank with fake plants and some decor. My water is crystal clear and all my levels are in the safe zone, temperature is at a steady 81 degrees fahrenheit, I have in there a rubber lip pleco, common pleco, an algae eater, a red wag platy, a blue spotted/coral platy, a blue mickey mouse platy, 4 zebra danios, 2 leopard danios and roughly 25 female guppies left. The problem is my female guppies seem to be dying off with no discernable sign of disease or parasites other than clamped fins. I have used everything from the parasite /fungus clear to the Api medications for just about everything, I was losing 3-4 females every couple of days and am down to losing one every 2-3 days. When this first started happening I had roughly 50 females, it only seems to be affecting my guppies as I have lost none of the others. Anyone know of what could be causing this? I have taken water samples in and a fresh corpse and the pet store employees are stumped.
