Which is easier, larger or smaller tank?

jones57742

Yes.

TR

leifthebunny

I've read it the other way around and have had great success with the larger tanks. It's all up to the individual doing it though.

FishN00b

I'm looking to buy a Fluval duo deep 1200, i think its about 160litres. I currently have a 70litre tank.

From what I've read, a larger tank is a lot more forgiving, chemistry wise, than smaller tanks.

I've got my small tank running fine, chemistry is consistantly good.

Is an external filter recommended? If so, why?

Thanks guys

leifthebunny

Undergravel filters tend to clog pretty easy, specially with finer substrate. With external filters, most of the pieces are readily available as well to clean to prevent clogging.

Andyandsue

I speak from experience that larger is easier. More forgiving, less of a bioload relatively speaking, easier to vacuum the gravel without removing 80% of the water, etc.

The smaller the tank the faster the issue builds and the less time you have to fix it before it's a disaster.

Falina

From my experience, undergravel filters are useless for plants as well.

Andyandsue

Yup, undergravel filters seem archaic and useless for anything but a betta.