I bought 2 otos last weekend and put them in the quarantine tank with an algae tab, seaweed and a cucumber slice. They sucked everything, but the food. The smaller, skinnier [but I did not feel too thin] just died. I am aware that they are often hard to keep alive and die within the first week, but I am frustrated. I feel like I gave them good options, and I do not want to loose the other one. What can I do to ensure that he eats right and adapts ok? I sit just hit or miss, or was there something I could have done better?