[HashBaz]

For emersed growth tanks / vivariums, is there anything like the watt per gallon rule?

 

[mistergreen]

The more the merrier. You don't have to worry about algae and plants get plenty of CO2 from the air.
You just have to worry about the heat generated by the lights.

 

[Higher Thinking]

The is nothing like the watts per gallon rule for aquariums either Really that rule is absolutely out dated, inaccurate, and worthless.