![]() |
![]() |
![]() |
#1 |
Registered Member
Join Date: Jan 2012
Posts: 134
|
LUX measurement at water surface useful?
I am hitting a peak of 20000 lux at my water surface for 4 hours in the middle of my lighting schedule. I run Evergrow LED fixture (Reefbreeder in the US I believe). Tank is 24" deep and LED fixture is 10" above the water surface. I keep softies and LPS. Is this value any use to tell me if my lights are high enough output or if I need to increase or decrease intensity?
__________________
180g (US) DT with 30g (US) sump. Softies and LPS. Red Fire Fish, Royal Gramma, 2x Ocellaris Clowns, 2 Spot Tang, 4x Green Chromis, Lyretail Anthias, One Spot Foxface, 2x Azure Damsels, Green Clown Gob |
![]() |
![]() |
![]() |
#2 |
Registered Member
Join Date: Nov 2002
Location: Miller Place, NY
Posts: 7,206
|
Not really, A PAR meter is the tool to use.
__________________
250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps. |
![]() |
![]() |
![]() |
#3 |
Registered Member
Join Date: Jan 2012
Posts: 134
|
That's cool and I know that PAR is best but I don't have PAR meter
__________________
180g (US) DT with 30g (US) sump. Softies and LPS. Red Fire Fish, Royal Gramma, 2x Ocellaris Clowns, 2 Spot Tang, 4x Green Chromis, Lyretail Anthias, One Spot Foxface, 2x Azure Damsels, Green Clown Gob |
![]() |
![]() |
![]() |
#4 |
Registered Member
Join Date: Jan 2012
Posts: 134
|
I turned my LEDs down and most corals are responding better than before. Maybe they are expanding more to capture more of the lower intensity light now. I will leave them turned down for a few weeks to see how zoa and mushroom growth gets on. I also reduced whites more than the blues. It's a bit of a guessing game to be honest...
__________________
180g (US) DT with 30g (US) sump. Softies and LPS. Red Fire Fish, Royal Gramma, 2x Ocellaris Clowns, 2 Spot Tang, 4x Green Chromis, Lyretail Anthias, One Spot Foxface, 2x Azure Damsels, Green Clown Gob |
![]() |
![]() |
![]() |
#5 |
Registered Member
Join Date: Nov 2002
Location: Miller Place, NY
Posts: 7,206
|
BRS rents them out.
__________________
250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps. |
![]() |
![]() |
![]() |
#6 |
Registered Member
Join Date: Jan 2012
Posts: 134
|
Not really practical because I'm in Northern Ireland
__________________
180g (US) DT with 30g (US) sump. Softies and LPS. Red Fire Fish, Royal Gramma, 2x Ocellaris Clowns, 2 Spot Tang, 4x Green Chromis, Lyretail Anthias, One Spot Foxface, 2x Azure Damsels, Green Clown Gob |
![]() |
![]() |
![]() |
|
|