Using 20k MH - Is VHO Super Actinic Needed?

shaywood · 10-14-2007, 09:19 PM

I recently switched from 2 400w 10k's to 2 400w 20k's. I also use two VHO Super Actinics. Is it necessary to continue to use the VHO's? I turned them off and could hardly tell the difference.

**charlie** · 10-14-2007, 11:18 PM

I used them when my 20K's were on. I guess they wouldn't be necessary, I also used them for the dawn-dusk effect. I guess it would run down to personal preference.

Samper · 10-15-2007, 01:43 AM

I think it would be nice to keep them even if you don't visually notice a difference. I prefer to ramp lights up and down throughout the day though.

10-14-2007, 09:19 PM	#1
shaywood Citizen Join Date: Oct 2001 Posts: 112	Using 20k MH - Is VHO Super Actinic Needed? I recently switched from 2 400w 10k's to 2 400w 20k's. I also use two VHO Super Actinics. Is it necessary to continue to use the VHO's? I turned them off and could hardly tell the difference. __________________ 125 Acrylic Tank 48x24x24 Approx 35 gal Sump/Refugium Refugium has 24/7 light with 55watt PC 2x 400w MH 20k lights running 10hrs/day 2x 110w VHO Super Actinics running 12hrs/day Calcium Reactor Kalk drip with top-off Closed loop Sequence Dart Pump 12hrs/day Mag 7 Circulation pump 24/7 Kent salt 10 gal water change bi-weekly Temp ranges: 78 - 85 Nitrate/Nitrite/Ammon: 0 PH: 8.1 P04: 0 Ca: 500 dkh: 12 Mag: 1320

10-14-2007, 11:18 PM	#2
charlie Keeper of Willis Join Date: Jul 2004 Location: NW Montana Posts: 6,331	Re: Using 20k MH - Is VHO Super Actinic Needed? I used them when my 20K's were on. I guess they wouldn't be necessary, I also used them for the dawn-dusk effect. I guess it would run down to personal preference. __________________ 400 Gallon Reef Log Rome wasn't built in a day---neither is a reef

10-15-2007, 01:43 AM	#3
Samper Contributing Member Join Date: May 2004 Location: Arkansas Posts: 3,774	Re: Using 20k MH - Is VHO Super Actinic Needed? I think it would be nice to keep them even if you don't visually notice a difference. I prefer to ramp lights up and down throughout the day though. __________________ Keep your heart pure conceive your own dreams Respect your fellow man the earth and the trees.

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