Can tank water be filtered with a household purifier?
First of all want to say, the upper filter and external filtration are two kinds of filtering, different, outside filter generally refers to the hanging waterfall, filter or filter bucket.
No matter what kind of change is not the lack of water filtration, filtration, but reduced water fish food residue and even the concentration of ammonia and nitrite, but for residues of heavy metals and harmful bacteria and viruses have not what effect, even becomes a breeding ground for bacteria. So it's necessary to change water regularly. New water can stimulate the growth of fish and inhibit the multiplication of harmful bacteria. For your 1 meter cylinder, change 2 barrels of water a day, almost 1/12 to 1/10 of the whole tank water. If the water is not changed for a long time, although the concentration of ammonia and nitrite can be controlled, but the concentration of nitrate is increasing and PH is decreasing. So don't be obsessed with the idea that you can't change water for a long time, so you can't keep good fish!
1 meters of the cylinder, if the density is not large, the filter can completely meet your needs, coupled with your stay of Rohan, Lohan are mostly monoculture. So the filter is quite enough, and the filter material is more suitable for you. However, you can also change second layers of biochemical cotton to ceramic rings for marine fish, because the efficiency of nitrifying bacteria is higher than that of biochemical cotton. Also to provide more effective nitrification in your limited filtration space. The last layer can be a combination of volcanic stone and medical stone, of course, volcanic stone and ceramic ring can also be. The gap lies in the fact that the medical stone has the ability of regulating the pH value of both directions.
