Keep your Bio Media in a compact holder in your sump. Capable of holding 27 Bio Spheres in a compact 3.5" x 3.5" x 4" space (5 inches tall with handle) while allowing water to flow freely through all sides.
Keeping your bio spheres like this will greatly increase efficiency when compared to the mesh bag sitting on the bottom of your sump. During a water change just quickly pull the holder out of the tank with the small handle on top and give it a swish to keep detritus from settling.
These are printed in PETG so they are reef safe.
*Maxspect Bio Spheres are sold separately
*3D printed items are printed after purchase, these items are not included in our same day shipping policy and typically will ship the following day or within 48 hours.