Well, another yellow lab bit the dust. I'm wondering if maybe the batch that Petsmart got from their supplier wasn't very healthy? It was fine yesterday, then at noon, its hanging out on the top, but appears fine. I get home at 10, and its dead, stuck in the leaves of one of the fake plants. My water parameters seem fine, I think. pH: ~7.6-7.8, Alkalinty: ~120ppm, Hardness: ~120ppm, Nitrites: 0, Nitrates: ~30-40ppm. I wondering if my white-tailed aceis (I think thats what they are) are harrasing them to death, as the two of them are the biggest, besides the one Curvicep, and seem as healthy and active as can be.