"Graham Ramsay" wrote in message ...
"Ron Nelson" wrote
What do you have for lighting now? What size of tank?

Ron

4 foot tank with 2 x 40w T8s.
DIY CO2.


The lighting you have is very low for that size tank. Upgrade the
lighting first, or C02 won't matter much. T5s are very expensive. For
the cost of T5s, you should be able to get both a complete power
compact lighting system and a C02 system.

If you keep your lighting you will barely be able to grow moss. Even
four 40 watt tubes on a four foot tank isn't much.

Robert Hudson
www.aquabotanic.com