Evolve 4 refugium

[KirbyBTF]

Hi, my current setup is a Mr. Aqua 12g long, I'm thinking of adding a 4g Aqueon Evolve under it as a refugium. Seems to me it would work out perfectly, front chamber for sand/rock/chaeto, and I can use the right rear for my skimmer, and left rear for my pumps. However I'm not sure if I would need two pumps or not. Would I need one for sucking water into the fuge, then one for returning it? Would the two pumps need to be the exact same pump, so the fuge doesnt overflow/dry up and overflow the tank. I've never set-up a sump/fuge before so any insight on this would be great.

 

[PinkPunisher]

You only want one pump, your drain to the 4g should rely on gravity/siphon only. Putting two pumps in there would make it almost impossible to match the flow rates perfectly.

Personally I think for the roughly $40-$60 your gonna spend on this 4g you'd be better off buying a 10 gallon and just putting in some baffles. Cost wise it will be almost the same (if not cheaper) and you'll be adding more volume to your tank.

 

[KirbyBTF]

I have the 4g already and think it would look great as a display refugium. Would I need an overflow box?

 

[PinkPunisher]

You get away without one but I would personally get an overflow box as it looks much nicer than a DIY PVC overflow.

 

[KirbyBTF]

Can you recommend a good nano overflow? I've seen some for like 60 bucks and that seems excessive...