A IV drip setup or a leach box are a very useful things to have around.
To make a leach box just get standard specimen cup that hangs on rim of tank, drill a hole about 1/16” in both left and right end and set in tank where current gently flows by it. Mix your stuff with enough water to dissolve it and poor it in. Tiny bit of current flowing through it will slowly leach solution into tank over a few hours.
Last edited by DaveKS; 08-07-2019 at 06:59 AM.