QUOTE(sang gemok @ May 30 2012, 01:50 PM)
kwn jual taw.nk support tambang balik.hahahaha. xdelah. guwau jer. hihihi. insyallah.
kalau ora kelalen, aku bawak rotala neh. arek opo2 barang planted lagi kl?
abe, kawe buke ore jawo.. abe ghoyak ghapo ni??
QUOTE(Malformed @ May 30 2012, 01:55 PM)
I'm thinking, could it be the chemical filtration that is lacking in my tank.. There was so much dirt on lying on the foreground and I have no idea what is wrong.. I bought some cleaners (I don't remember what name was it, but it is short and fat type, not otto), put it in the tank, the next day they cleaned up the dirt for me. But I'm thinking I should improve my filter, probably introduce another HOB (making it 2 for a 1ft tank), or change the media.
How much is it roughly to buy chemical and biological media?
QUOTE
2. Chemical Filtration
Some of the impurities are not possible to be removed by mechanical filtration, for examples, colors, smells, dissolved substances and other very fine particles. To get rid of these impurities, chemical filtration is necessary. Activated carbon is commonly used as a chemical filtration agent, because it has the ability to absorb colors, smells, dissolved substances and very fine particles. However, there are 2 major disadvantages of chemical filtration (activated carbon):
It has certain limited capacity for absorption. After a certain time frame (normally up to 3 months depending on types and water condition), activated carbon will lose its absorption capacity and will not be functioning anymore. Some even believe that when the absorption limit is reached, it will start to release those substances back into the water (although the author cannot confirm this statement).
Another major disadvantage is that not only activated carbon absorb impurities and unwanted substances in water, it also absorbs the useful substances such as nutrients which is required by the plants.
Due to the above reason, especially reason 2), activated carbon is not usually used as an everyday filter media in normal planted tank. It is mostly used during the initial set up of the tank where there are more impurities and too much excess nutrient exceeding the plants uptakes. Otherwise, activated carbon is normally used as a “remedy” on temporary basis to certain problems such as tanning water, water with unpleasant odors or if there are certain impurities in the tank that cannot be filter out mechanically.
1st, you should know, how the chemical filtration works.
2nd, please check the flowrate of the HOB filter you have right now. the flowrate should be 3-4 x tank water volume.