Join Date: Apr 2011
Location: Hiding from The Mods
Agree with previous poster. The filter mainly filters out poo. This is called mechanical filtration. If you have activated carbon in the filter, it will filter out poisons, this is chemical filtration. Considered the most important type of filtration is biological filtration. This is where cycling comes in. There are two types of bacteria: the first kind turns ammonia to nitrIte, the second turns nitrIte into nitrAte, which isn't nearly as toxic as ammonia and nitrIte. Cycling is the process in which these types of bacteria build up to the extent where they can neutralize ammonia and nitrIte. There are many ways to cycle a tank. The two main ways are fishless cycling, and fish-in cycling. Research this more. It isn't as complicated as it sounds, and you can probably cycle it with mr betta in, as bettas are more hardy than other fish. So this is why a larger tank is easier to maintain. The three purposes of a filter are again; mechanical, chemical, and biological filtration. The Highest concentrations of these bacteria are in the filter and gravel. If the bioload is too high, the bacteria can't keep up.good Luck!