Lighting penetration

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Ok, i know that the AM 10 000k does not burn as white as the ATI and other more expensive brands.

But the question i pose is: Does the white light penetrate deeper than the "pinker" light given out by the AM tubes?
 
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I think Sylvania is pinker in colour than the AM bulbs. The 2 I got on the weekend are really white.
I have not seen the ATI white so I could not comment there.
 
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good question ej , as i noticed that the ati is not as white as some other tubes !!!
 
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Well i need to light up a tank that is 1 metre deep, and i can only use 54 watt T5's. So i need the deepest penetration possible.
 
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its a fish only tank, so i only need the light for viewing purposes.
 

viper357

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Maybe if you put mirrors on the bottom of the tank....
 

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Fish Only then don't worry about anything, the light will reach, just the PAR values will be almost non existent, which doesn't concern you as you not having corals.
 
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Ok, when i say fish only, i will be keeping one or two small pincushions from my LFS right on the upper reaches of the rockwork.

But as i asked in my question, will the ATI and the like give me a "better quality" light on the lower reaches of the aquarium?
 
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My God man, are you trying to get the highest poster label again?????

My issue is that i will be using 20 tubes, and i do not want to spend the extra money on the ATI if it is not needed.
 

viper357

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hehe :tt2:

If I was you (thank god I'm not) I would use a couple of ATI's positioned where your corals will be and the rest of the lighting made up of cheaper tubes.

I asked a similar question quite a while ago about the penetration depth capabilities of T5's, there was a good discussion on it but no real solid answer came about.

In all honesty, 20 tubes is going to cost a whack, why not try a couple of MH's? Initial start up cost will be heavy, but then it's merely replacing the bulbs every 1-2 years, and for your purpose you can use Venture globes which you can get for a couple of hundred bucks each. A lot cheaper to replace 3 or 4 MH globes than 20 T5 tubes.
 
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i will need too many MH's. The tank surface will measure 1500 x 2500. Hence the T5's, as i was going to run them across the width of the tank.

The halides i fear will cost a lot more in terms of electricity, and will generate a span of heat.
 
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Man that's alot of tubes, why don't you use a mix of the 2? 4 mh and 8 tubes?

Speak to Reef Inmate maybe he can make you a good looking unit for the lights? I would go with a mix as it allows you to get corals at a later stage...

JMO - for what it's worth.
 
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Oh shit did not think about the heat.... just a quick sum for you....

20 T5's @ R200 = R4000
10 ballasts @ R150 = R1500
40 endcaps @ R40 = R1600
20 Reflectors @ R50 = R1000

total Cost = R8100

Shit that's alot of DIY....
 
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Unfortunately to go with a RI unit i will be very poor. I will spread the tubes evenly over the surface of the tank, on a fixture that i can lift when i need to do tank maintenance.

I will use 5 blue tubes, and 15 white.

I will only be housing softies (no not a Dean, the coral type), for a bit of colour and variety.
 
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