Zoas won't open fully about 2 months

[saltyfilmfolks]

how much light do you have in there?

 

[aop]

So my Ca has been consistently low at 340 as the latest, I mixed some reef crystals (what I've been using) and new mix is also low on Ca at 380, seems like reef crystals not so good? I've been reading up on Ca, Alk, Mg levels seems when they are out of line or any one of them then that could possibly cause issues like mine. I don't have Mg test kit, should I get one and start dosing to ensure proper levels, could it be this as the issue besides my low nutrients?

 

[aop]

how much light do you have in there?

Got 2 evergrow China boxes I believe 165w each, I recently lowered the intensity by 20% and raised the lights from 6" to 12" above water. So my light intensity never goes above 50%

 

[saltyfilmfolks]

if you have a lux meter or dslr I can tell you more on the light needs and if its correct.
I assume youve addressed flow?
low to med turb. up to right where you can see the fringe rustle.

 

[aop]

if you have a lux meter or dslr I can tell you more on the light needs and if its correct.
I assume youve addressed flow?
low to med turb. up to right where you can see the fringe rustle.

Yes flow shouldn't be the issue even though I've even trying playing with that, by dslr u mean a camera?

 

[saltyfilmfolks]

yup, dslr.
my zoas more often wont open to flow than anything else. I also got some palys that I didnt know I had until I put them in my other tank that has twice as much light.

problem with lights now, is they say A lot a little or high low. with no actual quantitative number. except PAR. lux is a component of PAR. Intensity. the other component is color and spectrum.
a par meter is 300 buck a lux is $20 A dslr uses intensity. by using a photo that is well exposed I can determine how much light you have because I know how many foot candles/lux (intensity)it takes to expose at any given asa.
so 50% on a 165 w Chinese doesn't really say much. if your only really giving them 180lux

 

[aop]

yup, dslr.
my zoas more often wont open to flow than anything else. I also got some palys that I didnt know I had until I put them in my other tank that has twice as much light.

problem with lights now, is they say A lot a little or high low. with no actual quantitative number. except PAR. lux is a component of PAR. Intensity. the other component is color and spectrum.
a par meter is 300 buck a lux is $20 A dslr uses intensity. by using a photo that is well exposed I can determine how much light you have because I know how many foot candles/lux (intensity)it takes to expose at any given asa.
so 50% on a 165 w Chinese doesn't really say much. if your only really giving them 180lux

So I should take photo of light at certain distance? Now would my shutter speed and etc alter my results

 

[saltyfilmfolks]

nope. Take a picture of your corals. note the asa/iso the shutter speed and aperture.
you can also take a picture of your flat hand at the waters surface and do the same. that will help me check my math.
I need the shutter etc to calculate.

 

[aop]

Ok thanks, I'm not home now but will do when home, in few hours

 

[saltyfilmfolks]

yea zoas are weird.
light flow and food. have you started spot feeding and twillards dosing?

 

[aop]

No spot feed, just twillards dosing

 

[aop]

nope. Take a picture of your corals. note the asa/iso the shutter speed and aperture.
you can also take a picture of your flat hand at the waters surface and do the same. that will help me check my math.
I need the shutter etc to calculate.

That's under my blues that are on right now, aperture is the 22, shutter 1/60, iso 6400

 

[aop]

nope. Take a picture of your corals. note the asa/iso the shutter speed and aperture.
you can also take a picture of your flat hand at the waters surface and do the same. that will help me check my math.
I need the shutter etc to calculate.

This is during my early afternoon setting with whites on

 

[saltyfilmfolks]

k. could use both lights. the exposure seems a bit off, could be computer. is your hand exposed correctly? seems overexposed.
set + - at 0

 

[saltyfilmfolks]

the quick answer is about 1300 lux. my hi lite tank is 20,000lux my low light is 12,000- 15,000lux

 

[aop]

the quick answer is about 1300 lux. my hi lite tank is 20,000lux my low light is 12,000- 15,000lux

I can try retake hold on

 

[aop]

the quick answer is about 1300 lux. my hi lite tank is 20,000lux my low light is 12,000- 15,000lux

this is at +/- at 0

 

[saltyfilmfolks]

Hmmm
If your hand is correctly exposed. You tell me.
You have pretty low light.
Still seems overs exposed.

 

[aop]

Well I lowered intensity and raised the height, that pic is blue and white at 30%

 

[aop]

Use to run at 50% blue and 70% white just to compare at his same time of day which would compare to the brightest time of day