Seachem Matrix/ Marine Pure

[arome]

Originally Posted by millenium

I hope in future they can develop a convenient product or material that can somehow house anaerobic bacteria to remove nitrate effectively. So far I am not convinced by the products in the present market.

The issue is not really with the products available but has to do with flow rates of the filter to cultivate anaerobic bac. Products like pond matrix is good for nitrate removal due to its large size and lower porosity to grow anaerobic bac. However most of our filters have very high turnover rates and that is not a suitable environment for anaerobic activity.

Many products promote porosity and surface as a big selling point but this actually only helps with cultivating more aerobic bac.

[millenium]

Originally Posted by Ong88

What's so difficult about regular WCs?

I do 20-30% a week with my light load tank. But I think with that nitrate remover stuff the water can be even better.

[millenium]

Originally Posted by arome

The issue is not really with the products available but has to do with flow rates of the filter to cultivate anaerobic bac. Products like pond matrix is good for nitrate removal due to its large size and lower porosity to grow anaerobic bac. However most of our filters have very high turnover rates and that is not a suitable environment for anaerobic activity.

Many products promote porosity and surface as a big selling point but this actually only helps with cultivating more aerobic bac.

How about a filter with the seachem denitrate and very slow flow rate?

[CZQ]

Originally Posted by Ong88

Matrix is lighter, good for ohf.

JBL Micromec I can't recall pricing.

ic thanks. i think is selling at 20+ for 650g. it is 1500m2/l surface area which is pretty good.

[CZQ]

Originally Posted by Ong88

Qian Hu OF 3DM filter media looks promising.

I haven't used it yet.

The volume of water absorbed gives rough guide to the biofilm potential surface area, the speed with which the water drains out gives indirect indication of porosity.

they are comparing with jbl and biohome?

[CZQ]

Originally Posted by Ong88

Yes
Most absorbent and porous in my rough non scientific observation is marine pure.
It is not brittle when dry, but when wet it is very friable and crumbly.

Now I make sure marine pure is dry a day before I handle.
The balls when wet are less fragile than the wet 8 inch square bricks.

how about the cube?

[CZQ]

Originally Posted by millenium

My guess is for bigger piece the only way to have more pores (hence total surface area) than a smaller piece will be either using a different spec material or a different steps to manufacturer (e.g. introduce more and perhaps smaller air bubbles). I suspect for more pores will mean the end product being more brittle.

can stick to the same formula as the smaller piece and will have more surface area. it is just that it does not have better gas exchange and will clog easier.

[CZQ]

Originally Posted by millenium

I hope in future they can develop a convenient product or material that can somehow house anaerobic bacteria to remove nitrate effectively. So far I am not convinced by the products in the present market.

yes. the fishes will appreciate this. it will be better than wc and plant. not all wc very often and having lots of plants.

[CZQ]

Originally Posted by millenium

How about a filter with the seachem denitrate and very slow flow rate?

this will do the trick. it must be slow flow rate for denitrate.

[Ong88]

Technical specs and real life implementation are only for us to be happy that we are doing something, in actual fact once cycled and stable, the system is good enough, regardless of high tech or simple media used.

Higher tech media, cycle faster.
That's what I have realised.