There are plenty of Biosphere rack designs out there, but I wanted mine to fit in a very specific spot in my RedSea Reefer XL300 sump and wanted to make maintenance a bit easier. I designed this, stackable rack system! Two racks can hold a single box of Maxspect Spheres. They fit together like loose legos essentially.
If you want to print some, tweak the design for your use case, etc. I posted it all on Thingiverse. I also posted the biosphere dimensions here.
https://www.thingiverse.com/thing:5203965/files

If you want to print some, tweak the design for your use case, etc. I posted it all on Thingiverse. I also posted the biosphere dimensions here.
https://www.thingiverse.com/thing:5203965/files
