Ok, now this is really going to show how new I and my guy are to reefing and saltwater all together so hope you don't mind the "stupid" questions what is sps and what am I looking for in the pictures above, am trying to learn about all that I can. We have a "new" used 65 gal and are still cycling it after 6 mths. We would get through one problem and develope another, the most recent was a green hairy algae growth, have turned the lights off after scrubbing and scrubbing the rocks and getting no where and finally read an article of turning off the lights seems to have done the trick with one rock still trying to grow but not getting far. anyway we have one peppermint shrimp, snails, sandsifting gobbie, cream with pink dots. two flame tail gobies? ? ? and rock about 15 lbs.