Lighting sch??

Mstanker · Oct 6, 2014

What's every one sch. on lighting? I set mine for at 7am blues on 1% and ramps up all the way until 8 at night. Is this to much lighting on my corals? Should i start it later in the morning or stop earlier?? Thanks

Jayellul · Oct 6, 2014

i believe 6-8 hours of full intensity is good.

Mstanker · Oct 6, 2014

ok whats your ful intensity ??

Jayellul · Oct 6, 2014

Mstanker said:
ok whats your ful intensity ??

Not sure what you mean.

By full intensity i mean all lights on at 100%

Mstanker · Oct 6, 2014

well i think if i run my LED to 100% it might burn them? i only got the lights up to 40% max between 12-2

ms705jk · Oct 6, 2014

My blue leds come on at 11 whites come on at 12 then go off at 7 and blues off at 8. I'm running both at 25 percent for the entire cycle

Mstanker · Oct 6, 2014

What type of leds do youhave. I have reef radiance so idk if the intensity is the same

ms705jk · Oct 6, 2014

Today I rented a Par meter for these cheap Chinese light panels I got on eBay. After taking tons of measurements I felt compelled to share them with y'all. Some of you I think will be very surprised. All measurements are with both switches in the on position and dimmer knobs at the same percentages. Measurements are distant from light and center of tank. In water. Lights 10" above waterline. 30" represents my sand bed
AT 25%
14" 150
18" 111
22" 85
26" 80
30" 75
AT 50%
14" 297
18" 260
22" 247
26" 222
30" 205
AT 75%
14" 556
18" 549
22" 462
26" 409
30" 373
AT 100%
14" 959
18" 740
22" 680
26" 637
30" 530

ms705jk · Oct 6, 2014

This is the fixture I'm using

Jayellul · Oct 6, 2014

The more light the better

Mstanker · Oct 7, 2014

So the next question is if i run my lights at 75% for 1.5 hrs in mid day. Which corals need 400 range of par?? SPS only or do some LPS need that light range also? If would be really nice if someone had a chart of coral light ranges.

NanaReefer · Oct 7, 2014

Have you measured your tank for par?

ms705jk · Oct 7, 2014

Yes I posted them in this thread already for you. You should ask your lfs what par they have on the sand bed in their grow out tanks. My lfs has a Par of 150 on their sand bed

ReefLEDLights · Oct 8, 2014

Here is what the corals receive according to Fossa and Nilsen...Modern Coral Reef Aquarium Vol1

Consider the peak intensity about a 400 watt MH at 24" under water...425-500 PAR free air.

I like to see 200-250 PAR on the sand bed which is a 10K Ushio on a 30 deep tank.

Another thing to consider is the Generic Chinese Fixture (resold under many names) do not use Binned Cree XT-E or XP-G Whites which offer a more desired spectrum.

Bill