Jul 14, 2017
Roman Cvik
wrote
Hello, I have Giesemann spectra 3x250w and I have question. I have both megachrome crystal and megachrome coral bulbs. At first I was using Corals but it was too yellow to my eyes. Now I have changed it for Crystals, color is perfect now but it look dimm when I compare to Corals. What do you think which bulb is better for sps corals? Crystals has best color for me but I do not know about growth and coral health.
I also mesured power consumption from socket and megachrome coral takes about 350w (??) and megachrome crystal only about 310w.
Please give some advice, I think you really understand HQI lighting when I see all your posts different reef forums;)
I also mesured power consumption from socket and megachrome coral takes about 350w (??) and megachrome crystal only about 310w.
Please give some advice, I think you really understand HQI lighting when I see all your posts different reef forums;)
Reply
4 Answers
Jul 14, 2017
Chris Conti
agent
wrote
Just like you pointed out, the Giesemann Coral is more yellow, but is better for coral growth. The Crystal looks better, but not getting coral growth. I recommend using the Giesemann Coral lamps and supplementing T5 or LED actinic/blue color spectrum so you can achieve the best of both worlds.
Jul 14, 2017
Roman Cvik
wrote
thanks a lot, I was hoping you say that growth is the same with both bulbs:( I think I will have to use to yellow tank. I have supplemented it by 4 ati blue+ but it is still not what I am looking for...
Jul 14, 2017
Roman Cvik
wrote
Maybe change the bulbs for radiums 20k would be the solution, do you think radium will be ok with spectras magnetic ballast or will i need to buy also new ballast? there is some Tridonic ballast now.
Jul 17, 2017
Chris Conti
agent
wrote
Radiums should be fine, most common used MH lamps.