Hello to all of you, I have had a reef tank for a few years now, and although I am still learning stuff about that on a daily basis, I want to try an octo tank. I have a 40+/-gal octogon tank in the bedroom now. I have a blue devil damsel, and a tomato clown from hell in there. I have a few hermits, a snail, and a few zoos. I have crushed coral as my substrate. Roughly 30lbs of LR. I do not have room for a sump on this system. I think I have figured out about my lighting. I am going to use the actinic that I used on a small reef for a while for the octos light. The only flow I have for now is just a skilter filter. Don't laugh it came with the free tank. The couple I got the tank from tried to keep an octo a few times. They could not escape proof the lid. I will make my own to know that it will work. Is the crushed coral ok, or do I need sand? Can I keep the two fish, or do I need to get rid of them so they don't mess with the octo? I hope he eats them. Could I get away with using a Super Skimmer 65, and maybe a small MJ for added flow, or do they like lesser flow? Is there a particular species that I should start with more than others now? The last one that I saw at the LFS, they couldn't tell me what it was, but they can oder different ones weekly they said. Do I need to get rid of some of the rock? I have several large ones. Any help would be awesome.