The tank was setup on 3/13, so just over a month old.
I only feed him about 6 pellets a day and he eats them right up. I watch him eat and I never see leftover food.
Here is a pic. You can see the fuzz on the top of the shell. If the water color looks off, it's because I'm treating my betta for fungus/finrot and there are meds in the water that turn it yellow.
10 gallon:1 Betta, 4 otos, 3 Rasbora hengeli
5.5 gallon: 2 otos and 3 Emerald Eye Rasboras