Anyon have a 36" 4 bulb t5 over your reef and happen to have a par meter? I have one 8" over a 40b and was wondering w/o the investment what the #'s are. My rocks are pretty low so probably about 14" from the rocks to the light.
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What bulb combination are you using? I had two ati blue+ and two actinics and was getting low to mid 100s all over my 40 breeder at 8"off the waters surfaceAnyon have a 36" 4 bulb t5 over your reef and happen to have a par meter? I have one 8" over a 40b and was wondering w/o the investment what the #'s are. My rocks are pretty low so probably about 14" from the rocks to the light.
What bulb combination are you using? I had two ati blue+ and two actinics and was getting low to mid 100s all over my 40 breeder at 8"off the waters surface
Correct, since my rockwork only comes about half way up in the tank, i measured there first and then the bottom.When you say all over is that top and bottom? Getting ready to put this same fixture and bulb combo over a 40b, I was hopeful it would do most of the grunt work so I could get away with lower power cheap LED’s mostly to balance out colors.. kinda want a minimum of around 100-150 on the sand and 250-300 at the surface.
Well, the type of fixture / reflectors can make a big difference in par values (as well as bulb choice). My ATI fixture puts out 40% to 50% more par per bulb than my old aquatic life T5's.Anyon have a 36" 4 bulb t5 over your reef and happen to have a par meter? I have one 8" over a 40b and was wondering w/o the investment what the #'s are. My rocks are pretty low so probably about 14" from the rocks to the light.
What is the lux/par conversion with t5?You could pick up a cheap lux meter and figure out par just to be safe. Better than guessing and they run around 15-20 bucks.
I believe you take the lux number and divide it by 60 or 70What is the lux/par conversion with t5?
ThanlsErr i have 4 T5s using the white fixtures with individual reflectors.. identical to atis jist no fan or splash guard.. two blue+ two coral + in my 125g tank.. 8 inchs from the watee line.. And im growing 15 types of acropora.. Including a red planet thats bright pink in my tank, green slimer, rainbow milipora, turquiose stag, walt disney, pink lemonaid, hawkings enchinda, myagi tort, purple bonsai, green tort, frogskin acro, tricolor valida. And few others.
They are all about 10 inchs from the water line give or take. So 18 inchs from the light. They are all bright colored.. pinks. Purples blues.. not one is brown.. and they all grow.
This isnt even counting the 30 other lps and sps i have on the mid to bottom
4 t5s is plenty for a 40b.. especially if it works in my 125g. Just get a good fixture with good reflectors.. View attachment 1563677View attachment 1563679