biomedia

Hi everyone, I'm starting up a seawater moving bed biofilter and purchased some new plastic bio-elements. Although the density of the media is ideal, they do not integrate into the water column and stay on the surface, even with harsh aeration. I would like to ask if you have any suggestion on...

On the best placement for my marinepure 8"X4" block now I have it in aquaclear 110's with half the block and the spheres both exposed to air! Is this the best way to use this media or should it all just be underwater in the filter? Thanks in advance mfk'er filter bros!

Hello All, I have looked high and low and I cannot find pot scrubbers, except at HomeDepot.com and they are like 42 cents each (with tax). They used to cost about 25 cents a piece a few years ago when they were plentiful. I need at least 200 of them, so this will get pricey if I go that route...