The bacteria inhabiting the Biomax rings will produce nitrates just like using bioballs. It's not the media but the oxygen rich enviorment that allows the bacteria to flourish.
Thank you Jadinop for your knowledge and help. You just saved me some money as I would've probably went out and bought some media to halt the algae growth.No media needed. Liverock, good protein skimmer and routine water changes (RO/DI) are all you need for a simple reef tank.
Snails are important but they don't magically make algae disappear. They convert algae to waste (poop for lack of a better word) and you need to export that waste before it can act as fertilizer for more algae. Protein skimming and water changes are the key. Blowing off the rocks with a turkey baster or small pump prior to doing water changes will also help remove those waste products and keep the rock healthy.