How much fertilizers for a 20 gallon long?
As you may or may not know, I have a 10 gallon with a betta. Currently, I am running low light which is 15 watts. I have a 20 gallon long ready to be set up. I have 2 other light strips. two 15 watts and one 17 watt. That will be 47 watts on the 20 gallon in total. I don't have any money to purchase a co2 system, but I do have two bottle of API CO2 Booster. I have fertilizers including the following-
I have measuring spoon including tad, dash, pinch, smidgen, and drop. I know that the dash spoon has the wrong measurement. So how many ferts for this tank?