Cold Water Reef Plan

[Knobsmith]

Thanks. A drop in sounds like a good idea. I think with the insulated tank and sump that a 1/4 HP will do fine, but I see your point about flexability for the future.
What do you think about the filtration? Is the combination of the skimmer and the refugium going to handle the load? I plan on growing some algae and having some barnicle clusters and rock down in the sump/refugium.