Its a sad day in my aqarium, and I will be following up with my LFS tommorow, but I wonder if anyone else knows what is going on here. I have a 33 Gallon Tall Tank. Fluval 3Plus submerible filter. A fairly agressive bubble maker, some fake plants, a piece of wood purchased from the LFS. Tested my water 2 times in 1 week and all conditions seem perfect. 1 week ago I had 7 white clouds in the tank, they had been living there happily for about 3 months. Last week I purchased an Ancistrus and 6 Guppies. I floated everyone and eventually released them. 4 days later, I noticed that one of my guppy's has both of his eyes go very large and black and he is acting very eratic. I wondered if the bubble maker was stressing him out. I turned it off. The next day, I tested water again, all good. HOwever, I had 2 dead white clouds and now another guppy with both eyes enlarged and black. The 2 bug-eyed guppies are now hanging out at the top of the tank looking like they are needing some air. Whats going on?
