Well I'm sad to say I have a confirmed fish death. I had ordered 3 juvenile angels for my 60 gallon, happily they sent 5. I acclimated them properly, 3 of them acted quite normally, exploring the tank, interacting with me and the cats at the glass etc, the 2 extras they sent went straight into hiding. This was about 10 days ago. I figured the 2 were probably just stressed from shipping, acclimating to a new tank, and I monitored them closely. I regularly would have to search for the 2 extras, they would lurk behind the heater, behind the thermometer, behind the lip of the tank, under the rock decorations, in the hollow log. I noticed they were a little reluctant to eat, unlike the others. I had to reach in and drop food to them in their hiding spots, but did observe them eating eventually, and started feeling better about them. They looked OK, if maybe a little pale. Very minor tail fin damage on one I noticed. This morning I couldn't find them, per usual. Really searched as these 2 haven't been observed eating for a couple days. I finally found one dead under the rock. The other is still missing and it does not look good. Water parameters: 0,0, 10-20, ph 7.8, temp 79-80 degrees My theory is they just had trouble acclimating, and just failed to thrive because they were so young (dime sized). I am watching carefully for any signs of disease. The 3 that I ordered are thriving, growing very quickly. One is nearly quarter sized already. They constantly roam the tank, and graze on the gravel and decorations all day. Angelfish are just so awesome! I just feel bad for my little casualty. And I'm worried for number 4. I try so hard to provide the best home possible for these guys. I think I'm just venting, but if anyone has any thoughts or tips or relevent experience, I'd sure appreciate it. Edit: they are in there alone. No tank mates and the tank has a stable cycle.