Oase Hel-X 13 Biomedia - 800ml size-1-58kg and will also enhance the

and will also enhance the UV-related behavior of your animals

Helps you monitor temperature gradients

ideal for small fish fry

The Turtle Eco also features a hidden back filter system which neatly conceals all the technical parts that keep your tank running

Dense screens can filter out up to 50% of the UVB rays

Oase Hel-X 13 Biomedia - 800ml size-1-58kg and will also enhance theThe Hel X 13 BioMedia for the BioMaster 250, 350, or 600 includes a replacement BioMedia allotment. The allotment contains 0. 3 gallons of Hel X BioMedia. Hel X BioMedia has a large surface area across this suspending media form which is ideal for biological filtration. It is best to only replace the BioMedia when you do a complete tank restart as to not disturb the beneficial biological load.