do they really even work? how? ive got a bunch lying around and was wondering if i should use them. where should i put them in the tank?

Bio Balls are great for Beneficial Bacteria growth, so YES you should use them. you can use them by putting them in your wet & dry filter underneath your eggcrate so that the water would drip over them, or you can also just throw them straight into the water in your sump.messiner said:do they really even work? how? ive got a bunch lying around and was wondering if i should use them. where should i put them in the tank?
