artur
Aquarium Advice Freak
I have Outer Orbit HQI / T5HO lights <150W 10.000K HQI, 4-54W T5>. I bought them 16 months ego. When should i replace them? HQI for a year run only for 3 hours a day < i did not have high light corals> for last 4 months i run them for 4 hours, that gives them around 1600 work hours. T5 I run for 8 hours a day < 3800 hours total> Should I replace them now or I still have time. Tank and corals still looks great. And those T5 ,two of them are 420 nm and two 460 nm actinic. What is the diffrence and what is better for corals. <I think maybe the blue output?> And my MH are 10.000K. Is this o.k or should I buy diffrent like 14.000K? Thank You!!!!!