Aquaforest. AF MicroE, 50 ml.
Supplement contains concentrated heavy metals – manganese, vanadium, zinc, nickel, iron, chromium, cobalt & copper. Mixture of trace elements necessary for all marine organisms. Carefully selected ratio for optimal conditions.
1 drop per 100l(27 US gal.) daily.
Do not overtighten the screw, otherwise the cover might be damaged.