MH - 20K Supplementation w/ T5

[Marmot74]

I am running 3 250K 20k MH. The unit also has 2 54w T5s. What would be the best spectrum to run for those bulbs?

This is a 272x24x24 tank.

[rsaha]

You could check manhattanreefs. They provide the spectral plots for many bulb/ballast combos. If you have a big spike at 440nm then you could go with an actinic plus bulb. If the spike is closer to 460nm then go with a true actinic. You could also post this in the T5 thread. You should mention what 20K bulbs you are using when you do.

[Marmot74]

Thanks! That's a great site for lighting info!