I picked up some Kent Phytoplankton tonight after watching my sponge fade and other things I'm not sure are doing so well...... I'm wondering though... I don't know much about these???? Any recommendations on brand??? Live or not ??? Zoo or Phyto ???? All I know is about fish food.... and all the bottles tell you is that they're good for filter feeders.... will they help my stars???? (One has a bacteria infection I think) Any help would be appreciated....