Keep your Bio Media in a compact holder in your sump. Capable of holding 27 or 45 Bio Spheres in a compact 3.5" x 3.5" space while allowing water to flow freely through all sides.
27 Sphere holder dimensions are 3.5" x 3.5" x 4" (5 inches tall with handle)
45 Sphere holder dimensions are 3.5" x 3.5" x 6.4" (7.15 inches tall with handle)
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.