BADFISH909
New member
I have a 190g stocked sps tank and was wondering how much return flow do you guys have. thanks
Im trying to see what the best flow rate is good with water going down to the sump and back into the main tank
That depends on how big your sump and skimmer are. You need to match your return to your skimmer in order to skim the most effectively.
For my 180 gallon reef I am using a mag12 dialed down so that it is putting out about 800 gph when you include head.
3X-5X on up to 10X is what typically most have. It depends on your own philosophy and theory of how you want to process the water, and its dwell time through the sump. You will be limited by your max flow through the overflow.
As for me, I like to stir it up in the tank.....let the overflow eventually suck it down and slow the water velocity down....allowing the energy of suspended materials to settle out into the sump.
If one is really good, they can get that pile to land in the area of their in-sump skimmer.
That depends on how big your sump and skimmer are. You need to match your return to your skimmer in order to skim the most effectively.QUOTE]
Not to hijack or anything :wave: BUT, this doesn't sound right to me. Your skimmer (we'll say for the sake of argument it does 200 GPH) will only skim 200 GPH no matter how much or how little flow goes through the sump. If you have 200 GPH through there, or 1,000,000 GPH, the skimmer only skims at a constant rate. Because of that, I don't think it's necessary or even beneficial to run lower flow through the sump. If anythyng, the more you can run through your skimmer compartment, the better. There's more of a chance something picked up from the display will make it into the skimer compartment. Just my thoughts, and if I'm wrong, feel free to correct me.
Ok, the regularly scheduled thread may resume
For the original poster it does make sense though. BADFISH909 is feeding the skimmer directly from the overflow.