02-16-2014, 08:30 PM
| || | Sump design, flow, UGF, and DSB questions
(1) In designing my sump for a 150 gallon tank, I believe that I should maximize the sump water volume as long as it fits comfortably in the oversized stand. I want to have a 20" overheight, but an old timer said that anything over 16" becomes very difficult (awkward) to access and maintain. True?
(2) If I set up a 5" DSB in my sump's microalgae refugium, is there an optimum flow rate through that section? Should MA have different flow than DSB? If the water enters and exits over the top of baffles, wouldn't the effective flow be greater near the top than at the level of the sand?
(3) Any reason not to pile up LR in the sump's first compartment if there is space for it along with the sock?
(4) My previously owned and used tank is fitted with a reverse flow
undergravel filter. All the UG criticisms I have seen focus on the detritus build up. OF course everyone says I should get rid of it. But can anyone tell me what would be the harm of leaving it in and cleaning it regularly?