Par reading and kelvin - Canreef Aquatics Bulletin Board

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Par reading and kelvin

03-01-2015, 01:35 PM

Proteus

Member

Join Date: Apr 2011

Location: Devon

Posts: 2,784

Par reading and kelvin

Friend came over with his par meter and I was surprised buy the low par readings.

Tank is 12" high with 250watt 20k xm bulb. Pendant is 10" above water surface. Par at top of rock which is 6" below water surface was 350. I realize that higher k bulbs have lower par.

Would you recommend lowering light for higher par or leave it be

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