Ok! Thanks and sorry!
Substrate: 6kg earthworms castings "in natura", 1 cm of laterita(Fe) and 1/2kg of vermiculita.
10cm of swimming pool sand filter
make two 90% water exchanges two times per week to remove all the excess of nutrients and not to allow the seaweed installation. After this weekly exchanges of 30 40%. But this is relative, in the truth the exchanges will also depend on the observed necessity, for example, if the partial water to start to be green, exchanges. When the tank will be stabilized introduces the dáfnias to consume all and any plâncton visible gift, as well as will serve of food for the fauna that will be introduced.
not, everything what I make is to search the balance of the aquatic way, either with partial exchanges, introduction of plants..... or what it will be necessary for such........ when the control is difficult use soon dáfnias that in few days completely leaves the crystalline water and without plâncton some visible one to little, but to make this is necessary to remove the fish in case that it has some, or would eat the dáfnias....... and later these same organisms that auxciliaram the stabilization of the way will go to still serve to feed the fish....... to know what to make, to understand what becomes, so that and which the consequências are the reason of mine search, certainly interminable, for the knowledge....... therefore what I think today or I find that I know, could be completely diferent at another moment any, or not, but the changes always are constant...... in the same way where the capricious life and, and always returns to the dust.......