I've had hang-on, currently have reef-ready (Mega-Flow). You'll be happier with a drilled tank in the long term, but hang-on can work.
~Bruce
~Bruce
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I've included a (what I think to be) good design for a sump. I'm working on making it reality in a 15 gallon sump. I'm going to use a drawer organizer for holding the filter media. It's probably got a few kinks to be worked out, but overall I think its a fair design.
ImohIf your return pump is appropriately sized I don't think it makes a difference. I would think the primary loss of flow with the return pump would be resistance from the elbows as the head height really isn't changed by the course the plumbing makes to get there.
I run a Bean Animal and a straight drop in the full siphon is a great help in getting the system to re-start properly after outages or if it's turned off for maintenance. If you're running a Durso/open standpipe I don't think even that matters.
I'm not certain that it makes _much_ difference, though you've got to take into account that your pump is probably pushing water certainty with a lot more force than gravity is pulling it down.
ouu
#reefsquad, any thoughts or opoinions on Mr. Zonian's question?
~Bruce
Butt typing hahahaYou ok @thatguy248 ?