Too blue?

[cyberdeth]

I am now running 1x250 MH 20k and 4x39w T5 HO's. Tank is blue of course. Is it too blue for proper growth of corals?

TIA!

-CD

 

[returnofsid]

Information about the kelvin ratings or color spectrum of your T5 bulbs will help get this answered.

 

[cyberdeth]

Information about the kelvin ratings or color spectrum of your T5 bulbs will help get this answered.

Poop! All I can find is "39w super actinic T5 HO". I guess I need to be at home to see what I can grab off of the bulbs.

 

[returnofsid]

"Super Actinic" works. If they were in the 10K range, it'd make up for some of the blue from the 20K MH bulb. As it is, you sure do have a lot of blue...lol. I don't know that it'll harm your corals at all, I doubt it, but it will give you slower growth than a lower K rating.

 

[cyberdeth]

"Super Actinic" works. If they were in the 10K range, it'd make up for some of the blue from the 20K MH bulb. As it is, you sure do have a lot of blue...lol. I don't know that it'll harm your corals at all, I doubt it, but it will give you slower growth than a lower K rating.

Cool. Thanks. I am about to turn 40, so things in the tank will be slowly playing the back 9 with me.

 

[returnofsid]

Cool. Thanks. I am about to turn 40, so things in the tank will be slowly playing the back 9 with me.

Careful!! I turned 40 9 months ago!!!

 

[Skimmy]

I am now running 1x250 MH 20k and 4x39w T5 HO's. Tank is blue of course. Is it too blue for proper growth of corals?

TIA!

-CD

no it's not too blue for coral growth. ...and more particularly, what corals?
if anything worst case scenario, some of your sps might not color up/grow the same, but most others will be just fine, if not flourish.
they care more about flow, water purity, and elemental balance, and being fed IMO....
on my last lps tank, I had a t5 fixture w/ all blue bulbs, it looked badass,
and the corals grew, polyped, fed just the same as they appeared to under combined white and blue light.

I can imagine some SPS species indigenous to the fore-reef aren't going to like that as much though.



and WTF??? 40 IS the new 20.... keep tellin yourself that, it works 4 me.

 

[cyberdeth]

Careful!! I turned 40 9 months ago!!!

You be careful! I have a horrible slice to the right and usually disable the governor on the cart!

 

[roblou]

and WTF??? 40 IS the new 20.... keep tellin yourself that, it works 4 me.

+1 on 40 being the new 20

 

[cyberdeth]

no it's not too blue for coral growth. ...and more particularly, what corals?
if anything worst case scenario, some of your sps might not color up/grow the same, but most others will be just fine, if not flourish.
they care more about flow, water purity, and elemental balance, and being fed IMO....
on my last lps tank, I had a t5 fixture w/ all blue bulbs, it looked badass,
and the corals grew, polyped, fed just the same as they appeared to under combined white and blue light.

I can imagine some SPS species indigenous to the fore-reef aren't going to like that as much though.



and WTF??? 40 IS the new 20.... keep tellin yourself that, it works 4 me.

Just doin' softies and some lps. Sounds like it will be fine.

Just getting my last frag off to college at the end of this year. Wish I felt like I was 20!

 

[JIvePhotography]

I just switched all my lights in my tank to a more blue look. I was running 2 250W MH with Current USA 10k bulbs and 4 54W Current USA T5s (two 420nm and two 460nm). I replaced my MH bulbs with Reeflulx 20Ks and all my T5s to Blue Life 420nm (purple). I have to say not only do I see better color in my corals but everyone seems fat and happy, better than before. My tank is mostly LPS and softies but I have a few SPS. My birdsnest SPS is growing super fast under these lights.

 

[lvsuckerfish]

250s with super antic are a good combo but as stated above water quality is more important they will grow good depending on ballast and bulb combo of the 250's