Lighting my 100L (~25gal) - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 10-21-2006, 03:43 AM Thread Starter
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Lighting my 100L (~25gal)

Gday Guys,
well i have finally got myself into gear and got my tank and stand setup. The tank dimensions are approxiamtely 24 inch x 15inch x 18inch (H) or approxiamately 100L of water.

So i need some lighting suggestions, and here are my options.

1. 3x 24w H/O T5's which will give me 72W
2. 4 X 24w H/O T5's to give 96W
3. 2 x 55W CF's to give 110W
4. 150W MH - just one i have laying around

Now really there aint all that much difference there between wattages, but i thought i would ask everyones opinions on it anyway.

Now i have pressurised CO2 for the tank, and wish to grow glosso as a carpet palnt as well as other high light stem plants etc. I want the system to have a little give in it, i.e if i miss fert dose here or there, it aint gonna end in a complete tragedy.
I've searched the forums a bit, and it seems maybe 110W over this tank may be a little to much. Sure it will grow plants very well, but may mean i have to be spot on with my fert dosing etc or i will run into trouble, the same applies for the 150W MH.

So im thinking the option is between the 72W and the 96W T5's

Ideally i would love to use the 150W MH as i have it, so not gonna cost any extra $$, but pretty sure its just not a good option for me to go with.

So if any one would like to state thier opinion on which tway to go, that would be great. If ya need more tank Specs, dont hesitate to ask.

Thanks Guys, Brad.
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post #2 of 4 (permalink) Old 10-21-2006, 04:41 AM
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If you have money to spend go for the 4 X 24w H/O T5's or buy a coralife 65 watts. Thats what I have for my 20 gallon high. Works great!
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post #3 of 4 (permalink) Old 10-21-2006, 05:09 AM
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Your tank is about the same dimension as the one I'm upgrading to (24x12x20). I'm planning on using 55w x 2 PCs, which is what I'm using on my 20H. I can pretty much guarantee that your 150w MH, while zero cost for you, is going to be too much light (6wpg). I would go with the 55x2, or if you want to tone it down a bit, the 96w would be fine too. Most stem plants and glosso as well, like a lot of light (Co2, ferts also), so if you already know that you're using pressurized Co2 and will be dosing regularly, I would go with the aforementioned PCs. You should be able to grow most anything under those conditions. Btw, what substrate are you going to use?

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post #4 of 4 (permalink) Old 10-21-2006, 10:43 AM Thread Starter
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Hey,
Yeah originally i was gonna go the PC option. I was going to DIY them and have most of the parts already, except the wiring diagram, so i will have to find a wiring diagram for doing the PC lighting. If anyone knows of a site or anything that shows how to wire up DIY PC lighting, that would be great. Unfortunately we dont have things like AH supply here in Australia, so cant get a kit with diagrams etc already in it.

The advantage of me using the 4xT5 is that the unit is a proper aquarium lighting unit, and hence no DIY, and no risks associated with DIY.

As for substrate, i was going to use flourite, but here in Australia all specialty aquarium substrates are very expensive, so i have gone a substrate recommended by another planted guy here in Aust called "Richgro aquatic plant soil". Its actually designed for use in ponds. Cant give any specs on it, as in chemcial breakdown, but this guy reckons it does well in planted tank. Im actually a chemist, so when my work gets its new ICP-OES im going to analyse this stuff for CEC and chemical breakdown.

Thanks for the responses, keep them coming.
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