Refugium flow?

[Squist]

Is there too slow for refugium flow? Current best practices you might share re flow rates though refugia?

I've converted my sump's 3 gal RODI reservoir to a refugium and added 24 MarinePure cubes, 32 oz of Algaebarn's copepods, cocktail of plankton, etc.

Attached pic: RSR reservoir converted to refugium; 24 MarinePure cubes, a basket of chaeto under a LED lamp (using this fixture and this bulb); plus 32 oz of this has been added with daily feedings of plankton.

Adjustments you might recommend?

Thanks in advance!
-Art

 

[Flagg37]

I’ve just let the flow be whatever it is based off the return pump. I shoot for 2-5x turnover of tank volume per hour. I’ve heard of other people putting small power heads in certain areas to keep detritus from building up.

 

[rygh]

Flow can definitely be too low. That usually shows up as Cyano growing rampant in fuge and even on chaeto.
Usually return pump is ok though.
So I would not add anything unless you notice a problem.

One thing is you will get a lot of detritus build up between those blocks of marine-pure.
So remember to occasionally pull them out for full cleaning.

 

[Squist]

One thing is you will get a lot of detritus build up between those blocks of marine-pure.
So remember to occasionally pull them out for full cleaning.

Thanks for the tip! I plan to have egg crate under the blocks for quick lifting to clear detritus out.