Green Water In Bio-filter Setup, Is it possible? Options

[top_view_ranchu]

With high stocking densities, and water supply that is not alkaline enough, it is very hard to maintain an acceptable alkalinity level with just coral chips. Furthermore in Singapore our water is not alkaline enough,so any water change is insufficient to maintain that required alkalinity .So you need to "artificially inseminate" it through adding baking soda.

The bioconverions of fish poop and ammonia generates acid and consumes pond alkalinity. That is why the alkalinity continually drops in most fish ponds and requires adjustment in some way.
For those who are not aware of what is going on .Here is another food for thought .A mathematical breakdown of how much food generate how much ammonia and the required sodium bicarbonate to maintain alkalinity.

Now it has been found that roughly 450g of ammonia converted by a biofilter have to consume about 6500g of baking soda to maintain alkalinity.

Now 450g of fish food would generate approximately 135 g of Ammonia and with the given above bioconversion ,1500g(1.5kg)of food would need approximately about 6500g of baking soda to maintain alkalinity.So if you have fed some 50 g of accumulated food before the next water change you would need about 200g of bicarbonate to maintain alkalinity.

Doc,

[goldrush]

To simplify matter just remember

FOR EVERY 1G OF FOOD GIVEN AND CONSUMED,YOU NEED ABOUT 4G OF BICARBONATE TO MAINTAIN ALKALINITY.

[desireless]

Wah... how come now it's about KH already?

Anyway, I don't know what your expressions are when you see this (but I was laughing until my stomach cramped):




MAYBE, the person also trying to achieve BB and green water living in harmony. So he added a matured bio-sponge filter in his already (correct) green pond. 2 weeks later, as you can see, pond has turned jade-green and the spong filter floating on the surface of the 50cm-deep pond

I hope it serves as a NEGATIVE demostration

(You must know what you are trying to achieve ah... )