| There is probably no more important equipment than | | | | into. The first problem comes after 4-5 days when |
| the fish tank filter is in any aquarium. In order to let all | | | | you'll notice fish don't have enough oxygen. Naturally |
| newbies understand this problem, first it's necessary to | | | | you can always add an air pump there, so everything |
| realise that every natural process generates outputs | | | | will be fine again. However, the silence will be no longer. |
| and takes inputs as well. In our case, the input is fish, | | | | To make as much as possible, you can create an |
| plants; and fish' excrements in the concrete. The | | | | open-top aquarium which should have wooden walls |
| output is, as reader should feel, various bacteria, | | | | protecting fish from jumping out from the tank. |
| chemicals and basically elements which could harm | | | | Nevertheless our problems don't end here since fish |
| fish in the tank. If we compared filter-free aquarium to | | | | require food. If food falls down to the bottom |
| human beings, we'd have to stop using toilets. I don't | | | | (substrate) and is uneaten, it will start to decompose |
| think it would be a wise idea. The same happens in | | | | as time goes by. Natural part of the decomposition |
| any tank which is filtrated poorly or which isn't filtrated | | | | process is fungus growth. Moreover fish excrements |
| at all. | | | | help fungus growth as well and because you can't |
| Since I did one experiment about 2 years ago, I can tell | | | | control fallen food or wastes presence without the |
| you how the filter-free tank might look like. First, you'll | | | | filter efficiently, the fungus will be present almost |
| enjoy it's silence and maybe you'll introduce some fish | | | | everywhere within the tank. |