Hi all,

I have a moderate to heavy planted 20 gal tank and I'm noticing that the
plants are growing at a decent rate but they seem to be getting holes in
them and rotting. Here's my tank specs:

- 15 watt powerglo
- 15 watt sunglow
- leaf zone plant fert.

I got my water tested the other week at my LFS and they seem to be well
within normal levels.

Do you think my tank would benefit from CO2 via a nutrafin natural plant
system?

Phil..