gatrpetvet
New Member
Ok, I have a feeling this is going to sound really dumb. Anyways, 46g bowfront with a cpr bakpak biofilter/protein skimmer combo. Wanted to add some carbon to help absorb nastiness after treating for red slime algae. Got a nylon bag and added some carbon gravel, then sat the bag into the filter on top of the filter media. This cause the protein skimmer to overflow. Did it displace too much water? I need to understand how to do this correctly, it seems like even just a small amount of carbon displaces a lot of water so that it makes the skimmer and skimmer collection cup overflow on the other side of the biofilter. Advice please??