| Re: HOB filter/refuigium
I removed all of the filter medium from my HOB filters and added LR rubble as additional biofiltration. I seen clip on lighting that allows for sand and the refugium effect, but never pursued that option.
__________________  Currently tankless. 
20 Gallon mini reef with mated pair of Maroon Clowns given to Rougiem! 
80 gallon reef given to Rougiem/Wooster HS. |