Ok, I've pretty much decided that I want to start a sump on my 46 gallon. My small hang-on ecosystem refugium is doing a good job, but I want a larger area for growing macros and I'd like to start dripping kalk. What would be a good size sump for a 46 gal? I have an extra 10 gallon aquarium sitting in my basement, but I'm not sure if that would be a big enough sump for the 46. What do you guys think? I don't have much livestock... only 2 medium sized fish and lots of corals. What do you guys think? do aquariums make good sumps? or should I scrap that idea and go with something like the sterilite or rubbermaid container instead. Does anyone have a good sump design they could give me. Any advice is appreciated. Gracias.



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IME, setup the biggest sump you can fit under your stand. Make sure there's room for the skimmer, heater, return pump. A 10 gal would be fine but a 20 would be better. The sump is the cheap part. You''l need to add a few dividers\baffles. If you go with glass then have a glass shop cut you 2 or 3 baffles and your set. If you search the net you should be able to find a few sump designs. Here's a link to Perry's sump design.
