Well my Tank is about 15 months old I do water changes with Ro water but I admit I may be over feeding.Here is what I have in my tank 6 head trumpet,4 head hammer,3 small colonies of pulsing xenia,colonie of zoo's,Stylophora. 2 hermit crabs,1 gramma,1yellow watchmen gobie and numerous other little critters that all tanks have. My question how much phyto feast should i feed and how often? Ohh yeah all this in a 24 g aquapod.