[mistergreen]

Do you recommend 3-4 wpg with 7-8 hour photo period

or

2-3 wpg with 9-10 photo period.

 

[spypet]

I've gone both ways, but
"3-4 wpg with 7-8 hour photo period"
will allow you to grow a wider range of plants
well colored with low algae potential irrespective of Co2.