One died but I got 50% store credit to get another. They said my pH was too high but I dont think that was the problem since the other one is doing fine as are all my other fish. I read these fish can take up to 7.5 pH. Anyway Im gunna get pH down to 7.0 , but I think what really happened was he ran himself into a wall cause his face looked a little bloody when I had him in the bag. Also is it a big deal that my water is a little green? I have the tank on the patio and it just grows some algae I dont see the big deal other than cosmetics. (does algea/green water add or reduce oxygen?)