K1 Kaldness Media - 10mm x 7mm

[TimT]

Hi Rich,

Originally Posted by Bblinks

I was thinking about putting some marine pure biospheres in the tank since my rock work is very simplistic.

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

[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.

[TimT]

Originally Posted by Myka

These are like BioBalls on steroids.

Agreed and these have the ability to not be sludge/detritus traps too.

[TimT]

Originally Posted by Trevor W

conflicting info that says it will deplete o2 levels.

It depends on how you implement them. If you have an airline/airstone bubbling in a modified 2 liter pop bottle then it is possible. The method I recommend for hobbyists to implement these would be in a filter sock that has all the water from the overflow flowing through it. Ideally there should be enough water in the filter sock for the incoming water to create a liquified bed for the Kaldnes.

Cheers,
Tim

[Kraken]

Originally Posted by TimT

It depends on how you implement them. If you have an airline/airstone bubbling in a modified 2 liter pop bottle then it is possible. The method I recommend for hobbyists to implement these would be in a filter sock that has all the water from the overflow flowing through it. Ideally there should be enough water in the filter sock for the incoming water to create a liquified bed for the Kaldnes.

Cheers,
Tim

If you run a protein skimmer, I really doubt there will be an O2 issue tbh. But in my case I have a 72" tall skimmer so

[Trevor W]

Originally Posted by TimT

The method I recommend for hobbyists to implement these would be in a filter sock that has all the water from the overflow flowing through it. Ideally there should be enough water in the filter sock for the incoming water to create a liquified bed for the Kaldnes.

Cheers,
Tim

Filling a filter sock with k1 would be a great idea. Easy, contained, tons of churning, and most people implement filter socks. Thanks for the suggestion.