Avalanche Wolf
New member
So tomorrow I am going to be buying my retro kit to replace my 96watt 34" PC attinic that just blow after 4 months every time of use. I suspect the mosture is just too much for it to keep well in there.
I am finally upgrading the tank to T5HO with a kit from hellolights for the attinic supplement lighting .
I have a nice system planned out where it will be on a sliding rack so when maintance is not being done on the tank it will be in the front of the hood so as not to block the MHx3 above and as where most of my corals are center to forward. Lights will be 6"- 7" from the water surface( rock work is primaraly a large island with flow in the front and back of the rock. )
I was planning on using the following kit but with the water depth I am having 2nd thoughts looking at the kits and pricing.
24" 2 x 24w T5 HO Retrofit Kit
Kit Includes:
• Parabolic clip on reflectors (19" x 2" x 1")
• Advance T5 HO ballast (ICN2S39) runs 2 lamps (16.75" x 1.25" x 1")
• IP67 Moisture Resistant German End-caps
• End cap Stand-Offs
• 33 ft 18g solid wire
• 6 ft grounded power cord
The hood these are going in is 5ft inside across and 2ft deep. Placing the T5s like this would not obstruct the MH 250w X3 bulbs in the hood on top and would be in a single line .
So here is the delemia.......
I was checking it out tonight and they have the same exact retro kit except higher wattage and longer bulbs for only $10 more.
48" 2 x 54w T5 HO Retrofit Kit
Kit Includes:
• Parabolic clip on reflectors (42.5" x 2" x 1")
• Advance T5 HO ballast (ICN2S54) runs 2 lamps (16.75" x 1.25" x 1")
• IP67 Moisture Resistant German End-caps
• End cap Stand-Offs
• 33 ft 18g solid wire
• 6 ft grounded power cord
I would have to redesign the current light rack plan so that one bulb would still slid to the front and one would be mounted in the rear ( non moveable ) but it would have more wattage to penetrate the 24" of water and actually would be like having 2 of the 24"x2 kits i was planning on.
I am worried though that this much attinic would be too much blue for the MH lights to balance out. Good news with that is that the MH bulbs only have about 2 months left on them before replacing and I could step from a 10k MH bulb to a 6500 MH bulb and possible lower wattage as well and do a 5050 T5 and a full attinic without lowering the level of light the corals need.
I thinking with typing this out I am leaning even more towards the 48"x2 kit , helps getting the thoughts on "paper" i suppose but would still like to know what you think.
Like I said there is a $10.00 differance including bulbs on the two kits so price is not a issue between them. And I think aventually I will remove the MH bulbs and go to full T5HO setup ( would be nice to lower the Electric bill and lower heat and usage of the chiller )
Anyways thanks for the vent session and let me know what you think.

I am finally upgrading the tank to T5HO with a kit from hellolights for the attinic supplement lighting .
I have a nice system planned out where it will be on a sliding rack so when maintance is not being done on the tank it will be in the front of the hood so as not to block the MHx3 above and as where most of my corals are center to forward. Lights will be 6"- 7" from the water surface( rock work is primaraly a large island with flow in the front and back of the rock. )
I was planning on using the following kit but with the water depth I am having 2nd thoughts looking at the kits and pricing.
24" 2 x 24w T5 HO Retrofit Kit
Kit Includes:
• Parabolic clip on reflectors (19" x 2" x 1")
• Advance T5 HO ballast (ICN2S39) runs 2 lamps (16.75" x 1.25" x 1")
• IP67 Moisture Resistant German End-caps
• End cap Stand-Offs
• 33 ft 18g solid wire
• 6 ft grounded power cord
The hood these are going in is 5ft inside across and 2ft deep. Placing the T5s like this would not obstruct the MH 250w X3 bulbs in the hood on top and would be in a single line .
So here is the delemia.......
I was checking it out tonight and they have the same exact retro kit except higher wattage and longer bulbs for only $10 more.
48" 2 x 54w T5 HO Retrofit Kit
Kit Includes:
• Parabolic clip on reflectors (42.5" x 2" x 1")
• Advance T5 HO ballast (ICN2S54) runs 2 lamps (16.75" x 1.25" x 1")
• IP67 Moisture Resistant German End-caps
• End cap Stand-Offs
• 33 ft 18g solid wire
• 6 ft grounded power cord
I would have to redesign the current light rack plan so that one bulb would still slid to the front and one would be mounted in the rear ( non moveable ) but it would have more wattage to penetrate the 24" of water and actually would be like having 2 of the 24"x2 kits i was planning on.
I am worried though that this much attinic would be too much blue for the MH lights to balance out. Good news with that is that the MH bulbs only have about 2 months left on them before replacing and I could step from a 10k MH bulb to a 6500 MH bulb and possible lower wattage as well and do a 5050 T5 and a full attinic without lowering the level of light the corals need.
I thinking with typing this out I am leaning even more towards the 48"x2 kit , helps getting the thoughts on "paper" i suppose but would still like to know what you think.
Like I said there is a $10.00 differance including bulbs on the two kits so price is not a issue between them. And I think aventually I will remove the MH bulbs and go to full T5HO setup ( would be nice to lower the Electric bill and lower heat and usage of the chiller )
Anyways thanks for the vent session and let me know what you think.
