I kept sps in a 10 gallon with a emperor 280 and prizam skimmer with surface extractor and a corallife 96 watt 50/50 quad bulb and fixture 20" long. Did great till I got tired of doing a one gallon water change everyday and adding about 1/2 gallon of rodi everyday. I kept it open top and with a rotating fan sitting on the desk on the same timed power strip as the light. With the 280 and the prizam I had to put two thin magazines behind the tank for each one to get them to hang on the tank right. I couldnt see them because of the background. I also was able to keep anemone (bulbtip) but it got too big very fast. Merlina, monti and bali green slimer corals were kept and green star poylops but they were a bad idea, grew to fast. I also broke stupid and added calupera racemosa and spent time every few days pulling it out and adjusting the skimmer for the mung the calupera released when pinched. Hope the stuff I did wrong you can learn from and the stuff I did right will help you. Steve