Wlachnit
Past President
Well...now I'm disappointed that you're not doing the DIY... ;-)
Rygh's 250 gallon - rev.2
- Thread starter rygh
- Start date
sfsuphysics
Supporting Member
24x24 area and 55w? HA! Yeah. I think most lights claim that. I mean ok technically a single 5mm LED could do that, but how effective it is who knows.
But I think you got a good plan doing overlapping smaller areas. I've been toying with the idea of a moving lighting system just so I don't need lights over the whole tank, but I'm way behind on the curve when it comes to even get a tank up
And yeah, grand ambitions, but no time/energy/etc to see it through, that's the story of my life
But I think you got a good plan doing overlapping smaller areas. I've been toying with the idea of a moving lighting system just so I don't need lights over the whole tank, but I'm way behind on the curve when it comes to even get a tank up
And yeah, grand ambitions, but no time/energy/etc to see it through, that's the story of my life
roostertech
Guest
At the 60% profile that I'm running my Hydra 26 drain about 56w. Shadowing aside, that can cover 24x24 area (and more) easily for mixed reef purpose. The miyagi tort (My hardest sps yet) seems to be growing just fine 12" from surface.24x24 area and 55w? HA! Yeah. I think most lights claim that. I mean ok technically a single 5mm LED could do that, but how effective it is who knows.
But I think you got a good plan doing overlapping smaller areas. I've been toying with the idea of a moving lighting system just so I don't need lights over the whole tank, but I'm way behind on the curve when it comes to even get a tank up
And yeah, grand ambitions, but no time/energy/etc to see it through, that's the story of my life
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rygh
Guest
The problem with movable lights is you need to increase the time they are on.24x24 area and 55w? HA! Yeah. I think most lights claim that. I mean ok technically a single 5mm LED could do that, but how effective it is who knows.
But I think you got a good plan doing overlapping smaller areas. I've been toying with the idea of a moving lighting system just so I don't need lights over the whole tank, but I'm way behind on the curve when it comes to even get a tank up
And yeah, grand ambitions, but no time/energy/etc to see it through, that's the story of my life
Lets say you do a 50% light, that is on each side half the time. Then the light has to be on twice as long.
Seems like it would drive the fish nuts.
rygh
Guest
They are somewhat spread out, but not really all that far.
My tank is 28" wide, front to back, and I don't think a row along the center would do it.
Although I could do that and also have extra strips.
rygh
Guest
True. Although my tank is 16" longer, so I would need 5. $$$
rygh
Guest
I am sure it would work for coral growth, but it still seems like you would get weird coverage.
I think the only good way is like you have on your tank, but with an extra one for my longer tank.
The difference is then:
Cost = +50%
reflectors vs lenses. Pros/Cons on each
Diode selection and programming are roughly the same.
Coral reefer
Past President
If you're Willing to spend the money go w the primes. Will work well. Just think you could do like 5-6 hydra 26 and get pretty good coverage for less.
rygh
Guest
Installed a CO2 scrubber.
I have fairly low PH, and @Gablami had a slightly used one cheap, so thought I would try it.
Results are so-so.
It made a difference, but not that much.
Old range was 7.75 to 7.95.
New range is 7.9 to 8.1
It is better on the low end, which is nice.
I double checked Alk, and it is around 10.
I dose Vinegar, and I use Baking Soda for the Alk 2 part. So my theory is that those are still driving PH down.
I am already seeing a bit of purple in the media after just a few days, so I worry how long it will last.
I have fairly low PH, and @Gablami had a slightly used one cheap, so thought I would try it.
Results are so-so.
It made a difference, but not that much.
Old range was 7.75 to 7.95.
New range is 7.9 to 8.1
It is better on the low end, which is nice.
I double checked Alk, and it is around 10.
I dose Vinegar, and I use Baking Soda for the Alk 2 part. So my theory is that those are still driving PH down.
I am already seeing a bit of purple in the media after just a few days, so I worry how long it will last.
rygh
Guest
I tried that a while back with a tube out the door. No real difference.
My sump is in the garage, and back door is usually open when we are home, so lots of fresh air.
I have also tried micro-bubbles.
I put a small airstone under a powerhead, so it chopped it up.
Again, no difference.
I really think it is 3 things:
1) Auto-Vinegar dosing every 3 hours.
2) Auto-Alk dosing with Baking soda, not soda ash.
3) A fairly enclosed display tank, so not very good O2/CO2 exchange there.
(I want to limit moisture in the house)
Key is looking at the PH plot. It still never has a plateau at the top.
So to me, it is more an issue of not enough overall air exchange, not so much the air itself.
The skimmer alone simply can't do it.
I need to improve my ventilation system on the sump and main tank.
I do pull some air through the enclosed systems, but not enough.
roostertech
Guest
PH is in log scale so even a 0.1 movement is significant.
If CO2 pure air (after scrubber) doesn't move it that much, then outside air, which has 300-400ppm CO2, won't do much.
If CO2 pure air (after scrubber) doesn't move it that much, then outside air, which has 300-400ppm CO2, won't do much.