K1 Kaldness Media - 10mm x 7mm

[Trevor W]

Originally Posted by TimT

Hi Rich,



The two products do somewhat different jobs. The Kaldnes is just for aerobic biological filtration while the biospheres apparently reduce nitrate anaerobically as well as the aerobic bio filtration.

The Kaldnes is the best option for biological filtration as it is the most efficient and then the nitrate/phosphate can be neutralized using vinegar/vodka. The advantage of the Kaldnes media bed is that it does not deplete the oxygen level in the water due to it being in a liquified bed.

I would save my money and go with the Kaldnes media.

Cheers,
Tim

As you can see I have seen conflicting info that says it will deplete o2 levels. I have not tested it myself just from what i have read on simplydiscus.