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Blue Vs White.... which?

Jrankin89

Well-Known Member
hi im 3 weeks into flowering, i found my old fish tank light, i have a blue one and a white one, which one should i use, and if i used the blue, what would it do???
 

FilthyFletch

Mr I Can Do That For Half
is it really blue or white or what kelvens is the range on the bulbs? Im guessing yoiu ahve a blueish MH tank bulb?
 

Jrankin89

Well-Known Member
is it really blue or white or what kelvens is the range on the bulbs? Im guessing yoiu ahve a blueish MH tank bulb?
its a 20 watt flo, about 2 and 1/2 feet long. doesnt say anything on it...... it just produces blue light. would it do anything?
 

TeaTreeOil

Well-Known Member
Yes, they work fine for vegetative growth, those lights are typically used to grow aquatic plants. And provide artificial sun light for fish.
 

Jrankin89

Well-Known Member
Yes, they work fine for vegetative growth, those lights are typically used to grow aquatic plants. And provide artificial sun light for fish.
okay... but im flowering right now with 5 cfl's at 2700k...... and adding this blue light.... what would it do?
 

FilthyFletch

Mr I Can Do That For Half
ahhha florescent. Well to start some plants into veg you can get a simple $8-$15 2 tube garage shop light at like wal mart or home depot. get 2 of the 4 foot T8 bulbs in the 6500k light spectrum this is the bluer color and if it was flower youd use 2700k areas meaning bluer for veg redder for flower
 

FilthyFletch

Mr I Can Do That For Half
you can mix blue with red for both flower and veg. The blue helps keep the plants fuller and more compact while in flower the red makes the plant stret6ch and yield better so if your mostly red in veg your gonna have longer leggy plants with less bushing and more stretch
 

Jrankin89

Well-Known Member
you can mix blue with red for both flower and veg. The blue helps keep the plants fuller and more compact while in flower the red makes the plant stret6ch and yield better so if your mostly red in veg your gonna have longer leggy plants with less bushing and more stretch
thanks guys
 
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