I am in the process of setting up a 40 breeder as a frag tank with a tel 6 bulb t5ho fixture. I would perfer to not have Any rock in the display. What do you guys/gals think the most effective method of bio filtration would be. Biggest sump would be a 20L including some sort of skimmer.
Biopellets?
Refugium?
Cheto?
Live rock in sump?
Biopellets?
Refugium?
Cheto?
Live rock in sump?