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Old 07/12/2018, 03:48 PM   #1
Valentini89
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Par

Apex PAR meter is installed, it's reading 142 at a depth of 30". Light is Reefbreeders photon V2. Light is at 30% and corals are all happy .. except a sea fan that is turning dark. Thoughts on PAR?


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Old 07/12/2018, 04:09 PM   #2
mcgyvr
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142 at 30" seems excessive but only one number is hardly worth commenting on...
A map of light distribution would be better I guess..


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Old 07/12/2018, 05:13 PM   #3
RobZilla04
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Agree, try to get a spread at different depths. If nothing else get several at the 30" depth for a range.


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Old 07/12/2018, 05:30 PM   #4
Valentini89
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Quote:
Originally Posted by mcgyvr View Post
142 at 30" seems excessive but only one number is hardly worth commenting on...
A map of light distribution would be better I guess..
Yeah it'd be pretty hard to get any reading other than the one I'm getting now. It would pretty much tear my rockwork up moving it. I didn't think about multiple readings prior to placement. I did look on Reefbreeders website and they had a map and it showed a PAR of 325 at 24" with the light 8" off the top of the water. My light is only a few inches off the surface. Makes me believe my reading.


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Old 07/12/2018, 05:41 PM   #5
kevin_e
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I would move that par rock to where it is accessable. Not going to do much good down 30", imo.

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Old 07/12/2018, 06:31 PM   #6
top shelf
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Agree with getting multiple readings from the tank, that's a pretty pricey piece of equipment for just one reading in one location.


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Old 07/12/2018, 07:17 PM   #7
Valentini89
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Agree with getting multiple readings from the tank, that's a pretty pricey piece of equipment for just one reading in one location.
This is true I suppose...


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Current Tank Info: 26g bowfront QT tank, -- 150g tall = http://www.reefcentral.com/forums/showthread.php?t=2671045
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