When the set-up is ready it is possible to fill the tank with water. Pour gently water using a rubber tube, a plate or a plastic bag. It is recommended not to pour water directly on the substrate, otherwise the tank will not be 100% clear.
Once the layout is completed it is very important to maintain the tank at its best. During the first weeks frequent water changes are needed. Clean the sponges of the water pump at least once a month and add fertilizers on a weekly basis.
Add a CO2 diffusor or reactor.
The result will be stunning.