hi,
i have the option of 2x39w or 4x39w over 215 litres.only one power lead so no midday burst.i know there's other factors involved(co2,ferts etc)but what would you recommend i use.
thanks
neil
ps.tanks 18" deep and lights are 4" above
i have the option of 2x39w or 4x39w over 215 litres.only one power lead so no midday burst.i know there's other factors involved(co2,ferts etc)but what would you recommend i use.
thanks
neil
ps.tanks 18" deep and lights are 4" above