Originally Posted by Connierodz
Very nice!! One day I want to start a planted tank..but is it expensive?
It doesn't have to be.
Plants are usually $3-$6 each, stem plants usually come in a bunch (3-6 stems or so).
Fertilizer is ~$10 for a bottle that will likely last you years, unless you have a medium to large tank (larger than 20 gallons).
The last thing is light, which you may or may not have to replace. This depends on your fixture and what's in it (describe their length in inches, and post any numbers you see printed on the bulb). If all you do is replace the bulb, this is usually no more than $10-$15 maximum.
A table lamp timer (the kind you use when on vacation to make it look like someone is home) is really handy to ensure your lights are on for a set time each day. They are under $10.
Otherwise that's it.