I have a question regarding those cups for filter sock replacements.
Setting up reefer 250 right now, will run it stock, and thinking of either buying up 10 socks for rotation or these cups.
But what can you put in the cups to substitute socks ?
Still new at this so trying to figure out which direction is easier to go with.
BRS Tv did a study on the filter socks. I also have the Reefer 250 I just went to one 225 sock in first chamber and an Acrylic Cylinder in the 2nd with micro algae.