I have developed black beard algae on my intake sponge for my HOB. I have a moderately planted tank with different plants including vals. I know you can spot treat with hydrogen peroxide, but was wondering if anyone has done something like an Easy Carbon dip? I would like to avoid adding Easy Carbon to the tank to prevent damage to the vals. Was thinking along the lines of removing the intake sponge and letting it sit in a bath of diluted Easy Carbon, rinsing it out really well with old tank water, then replacing it in the tank. Has anyone tried this?
