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vespers_ 05-06-2011 09:37 PM

best combination of bulbs?

i bought a 24" t5 HO nova extreme today for my 10 gallon tank, but it is the saltwater version with a 10,000k and an actinic (they make a version with FW bulbs but this was a good price).

anyway i want to replace the actinic and maybe the 10,000k the only bulbs i have been able to find are an ultra sun 6500k super daylight and a flora sun maximum plant growth 5000k.

what would be the best combination of the 10,000k, 6500k and 5000k?

10,000k and 6500k
10,000k and 5000k
5000k and 5000k
6500k and 6500k

any help appreciated :)

psalm18.2 05-06-2011 09:41 PM

Wow, that's a lot of light for a 10g! What are you growing?

vespers_ 05-06-2011 09:48 PM


Originally Posted by psalm18.2 (Post 1381003)
Wow, that's a lot of light for a 10g! What are you growing?

HC, dwarf hairgrass and maybe glosso. from what i have read HC/glosso need a ton of light to grow compact and dense :P plus if i ever want to add anything else later i can. just keeping my options open. i have another 10g planted with 3wpg and it's going great, but i want more.

redfishsc 05-07-2011 01:08 AM

Keep the 10,000K light (it really isn't all that blue at all, it will work fine).

Swap the actinic blue for a 6500K daylight.... or anything between 5500 and 7,000K.

And the 3wpg measuring stick won't work with T5HO. T5HO is much more efficient at producing light, and therefore the wattage will pack a LOT more light-punch than the old T12 and T8 styles that the "wpg" rule was built upon. It gets even more inaccurate with LEDs.

But I think you're light will be fine as long as you're using CO2, esp. if you can raise it up a little.

vespers_ 05-07-2011 01:34 AM

i will definitely be using co2 and dosing with ferts using the EI method.

thanks for the advice :) now i'm wondering how much light a really have on this tank... i assumed the wpg rule worked for t5 ho... i had 4.8 wpg... now idk what the heck i have :icon_lol:

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