Hi , I am new at aquariums and have a few questions so please bear with me.
I just got a 24" x 12" x 12" tank (which works out to 14G or so) with Nutrafin natural CO2 system and reflector lights with 2x20w 18,000K (Aqua-Glo) tubes.
I am planning on a planted tank and my lfs sold me 3kg of iron...