How Much Gravel For 6.5 Gallon Fish Tank in the USA
Generally speaking, you should add about 1 pound of substrate per gallon of water. How much gravel do I need for a 6 gallon tank? In general, you should use 1 pound of substrate per each gallon of a tank. In this case, 2 gallons should be enough for the 2 gallon size tanks, 3…
