Chinese black box spectrum for chaeto?

[Tangina20]

I recently bought 2 hydra 26 led light for my 40 breeder and thinking about using my Chinese led box for the fuge. I currently have a par 38 light on my fuge now and seem to be getting really slow growth. Would a Chinese black box do the job better? Should I use blue and white or just whites for the chaeto?

These two pictures are 7 months of chaeto growth.

 

[Scrubber_steve]

It's the red spectrum that's vital. 660nm

 

[Tangina20]

It's the red spectrum that's vital. 660nm

I have no red on par 38 but my whites on the black box have 660 I’ll give it a try!

 

[symon_say]

Just get a black box grow light, they are fairly cheap.

 

[saltyfilmfolks]

Change that par 38. You should have corraline like mad under a decent full spectrum light.
If you don’t have corraline with the BB don’t bother. You have other issues.

Also a fwiw , most B.B. at 1% in both channels are close to 200 par at 12in. Don’t fry your chato.

This btw is what chato wants.

 

[Tangina20]

Change that par 38. You should have corraline like mad under a decent full spectrum light.
If you don’t have corraline with the BB don’t bother. You have other issues.

Also a fwiw , most B.B. at 1% in both channels are close to 200 par at 12in. Don’t fry your chato.

This btw is what chato wants.

I have corraline in the dt with the black box , so I should keep the bb at 1% for chaeto?