I got 9 angels for about 1.5 months ago. When I got them, the size is approximately at about dime. Now they are at least the dollar size. I have been feeding them about 5 times / day with flakes and giving dry blood worms and shrimps 1-2 times / wk. It is kept in 46G plant tank (bowfront) & water have been keeping around 74F and is changed about 30-40% weekly. The problem is that these guys begging for food constantly, should I feed them more (Filters for the tank in combination are rated for over 200G)?