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View Full Version : how many ai hydras


Dbondaruk
06/23/2013, 11:35 AM
how many ai hydras would i need for a 190g tank. 60 by 27 by 27 thnks

nikon187
06/23/2013, 12:23 PM
3-4 depending on coral selection

Dbondaruk
06/23/2013, 01:06 PM
3-4 depending on coral selection

Thanks...

psychocoralchopper
06/25/2013, 11:28 AM
I have 3 Hydras for my 150G peninsula... 60" x 24" x 24". It's been up and running for about a week and I'm very happy with them. Coverage is very good, so I think 3 would work fine for your tank as well.

have a friend's Vega in the middle for comparison: I like the deeper blue LED's on the Hydra.

http://lh6.ggpht.com/-R6EVQ3TruJ4/UcKorZM2FII/AAAAAAAAANw/u8ohy3AHNDE/s1600/20130619_193641.jpg

kb3777
06/25/2013, 02:06 PM
I would go with 4 depending on SPS and/or where your overflows are.

Dbondaruk
07/15/2013, 12:05 AM
Overflow is in the center, plus I have a center brace that's. about 2 inches . It is plastic not glass. Would putting a light in the middle be pointless? Would love to get away with 3 lights

jeff_a
01/06/2015, 09:21 PM
I have 3 Hydras for my 150G peninsula... 60" x 24" x 24". It's been up and running for about a week and I'm very happy with them. Coverage is very good, so I think 3 would work fine for your tank as well.

have a friend's Vega in the middle for comparison: I like the deeper blue LED's on the Hydra.

http://lh6.ggpht.com/-R6EVQ3TruJ4/UcKorZM2FII/AAAAAAAAANw/u8ohy3AHNDE/s1600/20130619_193641.jpg

Hey, nice rack :lolspin: How did you make the side brackets that are holding up the AI classic mount? Thanks in advance.

Jeff

ksr.aaron
01/06/2015, 09:37 PM
I have 2 on my frag tank 48x24x13 and it is Awesome!!! have to turn them down a bit but they do great, I would say 3 would be prob right?

jeff_a
01/24/2015, 09:37 AM
I just put a 3rd on my 60x27x27 tank and are using the classic rails. The only issue I have is that I have a center brace in the tank and it blocks a little bit of the light but it's not that bad.

Itsmbmp
01/24/2015, 01:00 PM
I've got a 125. Which is 6 ft long. I was thinking of only using two hydra 52. Because I have corner overflows and a center brace. Was planning on mounting them the long ways over the tank. Thoughts.

jeff_a
01/24/2015, 04:26 PM
I think for a 6' tank you will need the 3rd hydra just for the coverage. how big is that center brace? Long way mount might be a good idea too.

Itsmbmp
01/25/2015, 06:27 PM
Center brace is 3 inches. Corner overflows are 8 inch

Itsmbmp
01/25/2015, 06:28 PM
I was thinking if I did 2 hydra 52 and they weren't enough I could always add a prime or two when they are released

ReefCowboy
01/25/2015, 09:48 PM
Wow. I have three in a 36" tank with a mix of corals. Had 2 for a while and even though ran blues at 90%, still had corals that looked brown due to lack of light in some spots. I even added 2xT5 because I felt the tank was still a bit dark.
Not its been running for a year with growth everywhere.
Call me crazy but on a tank that long, with three units(hydra 28 or old style ones)you will have to compensate with higher % of the LEDs . If I had a tank that big would go with 3x52's which equal 6x 28 hydras

jeff_a
01/25/2015, 09:56 PM
Wow. I have three in a 36" tank with a mix of corals. Had 2 for a while and even though ran blues at 90%, still had corals that looked brown due to lack of light in some spots. I even added 2xT5 because I felt the tank was still a bit dark.
Not its been running for a year with growth everywhere.
Call me crazy but on a tank that long, with three units(hydra 28 or old style ones)you will have to compensate with higher % of the LEDs . If I had a tank that big would go with 3x52's which equal 6x 28 hydras


You're making me want to go out and buy a 4th LED like a hydra 52 and upgrade my other 3 Hydras to 52's.

newe70
01/25/2015, 10:05 PM
You're making me want to go out and buy a 4th LED like a hydra 52 and upgrade my other 3 Hydras to 52's.

You will not be disappointed with the 52. I upgraded all three hydras to hydra 52s for my 100g Cadlights tank.

jeff_a
01/25/2015, 10:10 PM
Next question... How do you place your lights? Hanging or classic mount or something else? I'm using the classic mount for my 3 hydras and they are mounted vertically on my 60". Was thinking about hanging them on the ext rails.

newe70
01/26/2015, 12:19 AM
I'm using three AI ext rail systems.

ReefCowboy
01/26/2015, 05:38 PM
You're making me want to go out and buy a 4th LED like a hydra 52 and upgrade my other 3 Hydras to 52's.

The Hydra 52 is an excellent light. I have in my tank two of the old style and a newer 28. Hydras newer led clusters are definitely really nice.
I truly believe the guidance LED companies give for coverage in most LEDs is the reason many fail out there. I find very hard to keep corals in a 2x2' area doing well with proper coverage like they claim under only one fixture.
Led lights don't wrap around corals as well as t5's, since the diodes are a very direct, down type of light source. That's why corals can lack some color(sps bases with no color).
If you get more modules and better coverage, LEDs CAN give you great results(my opinion!).

jeff_a
01/26/2015, 05:40 PM
The Hydra 52 is an excellent light. I have in my tank two of the old style and a newer 28. Hydras newer led clusters are definitely really nice.

I truly believe the guidance LED companies give for coverage in most LEDs is the reason many fail out there. I find very hard to keep corals in a 2x2' area doing well with proper coverage like they claim under only one fixture.

Led lights don't wrap around corals as well as t5's, since the diodes are a very direct, down type of light source. That's why corals can lack some color(sps bases with no color).

If you get more modules and better coverage, LEDs CAN give you great results(my opinion!).


Already decided to buy a 4th LED, a hydra 52, and then slowly upgrade my hydras to hydra 52 over time. I'll have the coverage for sure.