Oase Hel-X 13 Biological Media, 20 Liters Aquascape 5 1/2" x 50' flexible

5 1/2" x 50' flexible black tubing custom 12013 1/2" x 100' flexible black tubing 025033120136 12158 5/8" x 20' flexible black tubing 025033121584 12050 1" x 50' flexible black tubing 025033120501

2" fittings on all components

weighing approx

5 MT10 4lb LED35 35" LED Light Strip 9 MT20 5lb

for example

Oase Hel-X 13 Biological Media, 20 Liters Aquascape 5 1/2" x 50' flexibleOase Hel X 13 Biomedia is a biological media used in the ProfiClear Premium Compact Filters and Modules. Biological filtration by colonies of beneficial bacteria remove toxic ammonia, ammonium and nitrites. Hel X Bio media has a huge ratio of protected inner surface versus exposed outer surface so the agitation caused by the turbulent water does not damage the bacterial colonies inside the media. This keeps colonies clean and active without a loss of