I have a Foxface Rabbitfish, Bangaai Cardinal, Clownfish, and a Firefish. Ive read some really good posts about this issue and since i am new to this i just would like to get some input. right now i am feeding them about half a frozzen brine shrimp cube(all the Bangaai Cardinal will eat) and a piece of green marine algae every other day. i was giving them one whole cube but it seemed like a lot was makin it to the sand. i also have a Green Brittle Starfish and Red Serpent Star and 2 Pincushion Urchins along with snails and crabs. i got this setup used and im just looking to get it running in better shape. so should i feed more, less?