Is 2.2 WPG enough?

Aussie_hippie_2

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Sep 17, 2006
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I'm getting a Coralife for my 29g and was wondering if 2.2WPG is enough for a fairly heavily planted tank? I imagine I'll be put CO2 in there soon aswell.
 
yeah, that is enough fo most low to moderate light plants.

you don't really need CO2 unless you are doing delicate plants or have a very strong HOB filter. my tank has high levels of dissovled CO2, almost as high as if I was using injection, and all I do is keep surface movement to a minimum.
 
I only have one plant that I worry about, which ironically is my favorite; my Nuphar Japonica. I just worry about if it needs CO2. I also have 2 Amazon Swords.

Thanks for the help.
 
If you allow the leaves of the N. japonica to reach the surface, you'll have to worry less about CO2 since it will be able to absorb CO2 from the air. Still, at that light level, CO2 is recommended for your other plants.
 
OK, I'll do the CO2. I just need to DIY the system which might take my a while :rolleyes:
 
C02 is not usually necessary below 3 wpg of lighting. 2.2 wpg is actually the low end of a medium-light tank, and most plants will be fine without it.

I've got a planted tank full of hygrophila and at 3 wpg and it does fine without C02. It doesn't grow fast and require constant pruning, but the plants are quite lush.

If you plant heavily with low and medium-light plants, you should be fine with just the light. Add C02 if you want, but it likely won't be necessary.
 
i think this is :OT: but I have 1.25 wpgs, what can I add? and do i need co2?


now back on topic, i heard 2.2 wpgs were high amount of lighting and that you definitely need co2 for anything over 2 wpgs........
 
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