My fixture holds 2 150watt MH bulbs and 2 96watt PC's
I need to replace all the bulbs because they are old and I am trying to figure out what to order.
I have pretty well decided on 2 14000K Phoenix MH's but I don't know what to order for the PC's so I need everyone's advice! I would like to get blue bulbs for the PC's but want to have enough wattage for my 70gal tank to allow for coral growth, but I also want to have the correct spectrum. I have a mixture of SPS, LPS, and Softies. My tank is approx 20" deep and the lights are approx 6" above the surface.
I have spent a ton of time online reading about lighting, but frankly a lot of it is over my head b/c I don't think I have the basic understanding that I need to understand the more complicated stuff and how to choose the best bulbs for my tank and inhabitants. I have read that actinics do little for coral growth... Is this statement talking about only the 420nm's or all bluish bulbs?
If I understand right, 420nm is more purple than blue and definitely not good for growth, but I'm not sure about the 460nm or the 67000K. Is this right? What is the difference between 460nm & 67000K?
Thank you in advance for your advice!!!
I need to replace all the bulbs because they are old and I am trying to figure out what to order.
I have pretty well decided on 2 14000K Phoenix MH's but I don't know what to order for the PC's so I need everyone's advice! I would like to get blue bulbs for the PC's but want to have enough wattage for my 70gal tank to allow for coral growth, but I also want to have the correct spectrum. I have a mixture of SPS, LPS, and Softies. My tank is approx 20" deep and the lights are approx 6" above the surface.
I have spent a ton of time online reading about lighting, but frankly a lot of it is over my head b/c I don't think I have the basic understanding that I need to understand the more complicated stuff and how to choose the best bulbs for my tank and inhabitants. I have read that actinics do little for coral growth... Is this statement talking about only the 420nm's or all bluish bulbs?
If I understand right, 420nm is more purple than blue and definitely not good for growth, but I'm not sure about the 460nm or the 67000K. Is this right? What is the difference between 460nm & 67000K?
Thank you in advance for your advice!!!