?18,000K PowerGlo Questions?

[hmoobvwj]

Hey can anyone tell me if these are good for plants? I was thinking of getting some plants in with my Arowanas.
Thanks

 

[hmoobvwj]

TTT! Anyone?

 

[Neophyte]

18,000K wouldn't do the plants any good, you would have to look more toward the 5,100K - 6,700K.

 

[hmoobvwj]

Why won't they do the plants no good?

 

[Neophyte]

They would get next to no useable light for photosynthesis from 18,000K. So your plants would look great until they starve.

 

[hmoobvwj]

Okay thanks! Anything else I should know?

 

[Neophyte]

Well after reading up a little more on the power-glo lights, they do have a 18,000K bulb that has peaks in the red spectrum so that could work for the plants.

Typically a kelvin rating that high is mostly blue and no significant red spectrum and plants need both for photosynthesis.

 

[hmoobvwj]

Thanks! Anything else?

 

[Neophyte]

There is a bunch of stuff that can be learned, all depends on what you want to keep such as CO2, substrate and fertilizers.

 

[12 Volt Man]

I used to grow plants like crazy with them.

had two 24" over a 30 gallon and 2 48" over a 65 gallon long (48x18x18).

no problems growing jungle val, hygro and huge amazon swords (with root tabs of course.).

I used liquid fertilizer too. replaced them every 6-8 months which is recommended if you keep live plants.

I liked them because they were not 'yellow/green" like the 6700K bulbs...