Co2? Or Flourish Excel?

[NeonFlux]

What would it be?

 

[Fordtrannyman]

Both!!!

 

[Notophthalmus]

For me: neither.

 

[Bk718]

depends on tank size I guess.. but i would go with diy, whole point is to save some $$

 

[Marinemom]

Depends on the set up that you have. if it is a low-tec and low light set up then it makes sense to use Flourish Excel but if you have a high-tec high light situation then you will need co2. All just depends.

Marinemom

 

[Yadokari]

I use both but I rely on my DIY co2 more and dose flourish excel whenever I feel like it. (Which is like, once every 3 days or longer)

 

[Slappy*McFish]

Tank size is another factor to take into consideration. Small tanks are cheaper to dose with Excel than large tanks. I wouldn't even consider dosing Excel in any tank over 90g.

 

[Draal5]

I use both because the excel also helps a lot with algae control

 

[Spewn]

Tank size is another factor to take into consideration. Small tanks are cheaper to dose with Excel than large tanks. I wouldn't even consider dosing Excel in any tank over 90g.

That was the motivator for me buying it for my 10g. It will last a very, very long time.

 

[StereoKills]

IMO it depends on tank size, setup and reason. If simply to supply carbon to plants, co2 is probably preferable.