I'm running a stock bio cube 14. I've got a pulsating Xenia,kenya tree, bam bam zoanthids and also radioactive zoanthids. They are all multiplying and doing fine. I had an issue with my trumpet coral. I put it on the sand bed and had to move it towards the upper half of my tank. It is on the rebound now. I would also agree with Carrie, these tanks make neat reef tanks and I enjoy mine very much! Weekly water tests and changes and that's pretty much it!