I'm no expert, but this appears to be just the reacter/diffuser. You still need something to generate CO2
. That would feed into this device and it would mix the water and CO2
to give you the best mix rate.
From what I've garnered reading the boards, 130G tank would be too big for normal DIY
stuff like 2 litre bottles.
If you're talking about spending the money on a 130g tank, I'd just go all the way. As somebody had said previously, it'll save you time, effort and heartache to just do it right the first time. I think folks have said you could get a setup for $200+, which isn't that bad considering that it's the initial cost of everything and you really get much better control over the injection when you get a good system.
I have a 46g tank with two 2 litre bottles that is working fine, but I also have the hassle of mixing the yeast and such. If I was single, I'd just get the CO2
done right so I'd have no worries about how much is getting into the tank.
It makes a huge difference though.
There's a sticky on CO2
in the planted forum with a lot of info if you haven't been there already.