Par levels
- Thread starter anarchy
- Start date
madjoe
Premium member
It depends on lots of things what kinda lights u talking what kinda acros. So ive been able to keep any acro under 200 par with leds but like my short cake pearl berry premo berry and few others r kept under 500 plus par and some need lower par to look good u can blast a coral make it look like a completly dif coral then if u keep it at 250 par
imranh
New member
Checkout this article for some guidelines (http://www.advancedaquarist.com/2006/1/lines/view) but honestly I'd say frag your stuff and experiment in your tank. I keep frags of the same acro at different par levels and then decide which I like better in terms of color and growth and take it from there. Enjoy.
ghostman
New member
Using T5, I have success with PAR between 200 and 400 on most SPS. SPS that are considered "high light" seem to thrive for me at 400 PAR or a little more. I have montis that get less than 150 PAR and seem to be doing great. IME, PAR levels are harder to read with LEDs. Not due to the blue spectrum that isn't measured accurately, but I would find hot and cold spots just a few inches apart. The hot spots were eliminated by raising the lamps to smooth them out. When I ran LED, I shot for PAR levels 150 to 300 on the Apogee.
anarchy
Active member
Thanks for the info guys. I run halides on both tanks. Just figured when I restock my sps then I'll actually try to know what kind of PAR levels they are at. Once I scape my 30 then I'll check par levels and move frags to different spots to see what kind of PAR each piece likes best
wld1783
New member
200-400 PAR is Good for SPS
A 400 watt Radium back in the day put out over 400 PAR at 24" The Ushio 10K More....
Photoinhibition in sps depending on species is between 350 and 500 PAR.
OK you can grow them at only 350 PAR but if you want them to colour up with photoprotective pigments you need more.
For SPS I like to see the old school standard of a 400 watt MH equivalent. Dont forget many of us also ran 110watt VHOs along side these with excellent results.
Some may site Dana Riddle and say this is unnecessary others may site Sanjay Joshi and claim that a min is 100 PAR on the sand bed.
Both have serious contributions . we as growers must take each study in context and compare it to our and others results.
Here is a FB Link to a lost coral that has been kept under LEDs equivalent to a 400 watt MH.
6th Element Systems https://www.facebook.com/SIRIUSxTcLEDs/photos/pcb.1051144301569524/1051143908236230/?type=1&theater
Bill
A 400 watt Radium back in the day put out over 400 PAR at 24" The Ushio 10K More....
Photoinhibition in sps depending on species is between 350 and 500 PAR.
OK you can grow them at only 350 PAR but if you want them to colour up with photoprotective pigments you need more.
For SPS I like to see the old school standard of a 400 watt MH equivalent. Dont forget many of us also ran 110watt VHOs along side these with excellent results.
Some may site Dana Riddle and say this is unnecessary others may site Sanjay Joshi and claim that a min is 100 PAR on the sand bed.
Both have serious contributions . we as growers must take each study in context and compare it to our and others results.
Here is a FB Link to a lost coral that has been kept under LEDs equivalent to a 400 watt MH.
6th Element Systems https://www.facebook.com/SIRIUSxTcLEDs/photos/pcb.1051144301569524/1051143908236230/?type=1&theater
Bill
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