Thank you. I only want to keep the hood for know as my 14 month old daugter is learning how to climb and throw things

and also with 3 cats around I just would like to be safe with the hood. I was looking at the ice probe chillers and they say that they are only good for a 20 gallon or smaller tank. I guess the only other option would be a small chiller that I can plum into the system

I will have to look into all of this and do some investigating. Thank you all for your help.
So it sounds like a 150watt
MH would be the best bet for my biocube to be SPS dominated correct?