Planted Tank Guru
Join Date: Jul 2008
Location: East Lansing, MI, USA
The local, or online, hydroponics shop can supply a lot of items for planted tank people. Some of their growing media are suitable for substrate mixtures. Some of them stock dry ferts at great pricing. Daylight T5HO lamps are usually a bargain as they sell more in a week than a fish store will sell in a year.
They also sell bulk head connections and plumbing bits that aren't available else where.