RK2 Xflo 3.5 (400-700 gallons) Avoid using tap water or

Avoid using tap water or RO water which contains more than 2ppm as dissolved silicon

Benefits reef-building organisms such as corals

Nitrifying bacteria can take weeks to naturally establish colonies in new aquariums while ammonia and nitrite can reach lethal levels in only a few days

Very limited run of the shapes rock mix

5″ adjustable

RK2 Xflo 3.5 (400-700 gallons) Avoid using tap water orThe most important things to consider when purchasing a protein skimmer are performance, reliability, and durability. XFLO Protein Skimmers combine all the above to deliver one of the most innovative protein skimmers available today! Dont be fooled by sleek looks, gimmicky twists, or exaggerated needlewheel performance! If a protein skimmer looks good and doesnt perform, how good is it? RK2 set the bar for protein skimmers in the public aquarium and