local f/s for my water,46 gal mt 15 gal sump,2 pep shrimp,1-6 month old tang. 1-5 month old box fifh, 1-8 year old blue dam,and a 3 month old lawmower blenny,1- 150w 10,000k m/h 2- 24w atinics, spectrum small, less that a pinch for all..once a day,10gal water change every other week,f/s has...