Hey, thanks for the great feedback. I agree that powerheads would be unsightly in the small DT and don't plan to run any. I modeled the twin return lines thinking it would balance the flow on either side of the tank to avoid maiking a whirlpool in there (boo laminar flow), not to mention that i should get some nice turbulent flow where the two currents meet. Myka, why do you suggest the single return line?
Yes Myka you're right, i was planning to try a MaxiJet 1200 as the return pump. I'm cureently running run one for the closed loop on my chiller and i've found it to have a lot of poop, and it's supposed to be rated for a 5 or 6' head so i thought it should run my system with 3' head no problem. That being said i did leave extra space in the return chamber for a bigger pump. Myka thanks for the tip on the eheim compact, i run an eheim 1262 in my bigger system and it's been very good to me, i may skip the MaxiJet and go straight for the better pump.
Myka, the chamber on the front of the sump (opposite end from the drain and return chambers) is the FW resevoir for ATO.
Now the DSB. I run one in my my bigger system and have had zero problems with it. Maybe it's too young to cause trouble, but in the time that my system has been running i've never read any detectable nitrates despite rather infrequent water changes. The DSB in my sump is not a black mess filled with toxins. I have yet to experience any drawbacks with it. For this nano not having a skimmer places extra importance on biological filtration (live rock, DSB, chaeto) and it can always be isolated from the system and serviced if necessary. Besides, with the proper livestock in that DSB there's no reason it should go bad anyway. Sorry guys, gonna have respectfully disagree with you on this one!
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