iv been running my 55 gal reef tank for just a little over a year now.. only had a few fish die (due to a tube anemone i got last month,but am bringing back to the lfs) but overall i think im doing good. i have 3 shrimp in the tank and they are doing very well, with that said.... shrimp are the most delicate rite???? so if they are growing,multing,and looking good, then i must be doing a good job right????? thank you for your time.