[don604]

I want to grow valisnaria in my hap 75 long tank. will three philips full spectrum 48 inchers and one white 48 incher be enough. Or can I use two full spectrums and one white. I have coral sand for substrate, they are planted in about one to two inches of coral sand.

 

[mcorbeil]

I have Val growing in coral sand, it didn't take off until i added some fertilizer spikes. I think you have enough light. 4x48in tubes.