How to wash the filter cotton in the fish tank?

Cleaning the filter cotton in the fish tank is relatively simple, only two steps are needed:

operational approach

1, the general filter cotton will have two layers, an upper layer and a lower layer.

You can take the upper floor out and clean it first. After cleaning, put it on the lower floor, and the lower floor will be transferred to the upper floor. This kind of circular cleaning.

Matters needing attention

When cleaning the filter cotton, use the original cylinder water for cleaning. Because cleaning the filter cotton with the original cylinder water can reduce the loss of beneficial bacteria and prolong the interval of cleaning the filter cotton.

Upon receipt, clean the filter cotton. Don't rub it dry like washing clothes. Instead, it should be soaked in the original tank water and stirred, and the dirty things will be thrown out, otherwise the dirty things will easily accumulate in the deep layer of cotton when rubbing.