Seachem Onyx Sand Freshwater Substrate - 7.7lb Ecotech Marine and aquascape detail show more

and aquascape detail show more cleanly

Best use: Tough algae removal from glass aquariums

5 watts at 50 Hz

The Red Sea ReefLED G2 60 is best suited to nano and smaller reef aquariums where a 20" x 20" coverage area and 20" maximum water depth are appropriate

or trickle filter so water passes through the resin efficiently

Seachem Onyx Sand Freshwater Substrate - 7.7lb Ecotech Marine and aquascape detail show moreOnyx Sand is a porous clay gravel for the natural planted aquarium. Being carbonate rich, Onyx Sand provides an advantage to any plants able to utilize bicarbonates. Onyx Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Onyx Sand is not chemically coated or treated and will not alter the pH of the water. Although pre washed, it may be