Best low turbulance filter for small tanks

[ral]

I have my betts'a in small 1.5-5 gallon contianers. Was thinking of using filters in at least the 2.5G-5G tanks. Right now with 3 Betta's moving 4-5 gallons of water every other days is no big deal, but I have been into Betta's for 3 weeks and I already have 3 fish so I think I had better start planning for a baseball team

My first betta is in a 5 gallon tank, but for reasons of space I think the 2.5G will be my Betta standard tank.

What kind of filtartion will work best and not cause too much turnbulance in a small tank.

 

[AlexsDaddy]

I use the duetto 50 in my 5 and 2.5 gal tanks. They have seperate mechnical and bioligical filtration, are adjustable flow and can be reduced to a trickle if you want it that low.

 

[ral]

Thanks. What types of filters are those? I have seen the filter you are referring to in the net, but have not seen that brand here. If I want a similar filter what kind of filter should I ask for?

 

[AlexsDaddy]

They are made by Marineland. They are fully submersible and go in the tank.

 

[ral]

Thanks.

 

[Gazoo]

I've used a Red Sea Nano Filter with good success. Rather than use the supplied small sponge, I cut a larger piece from an AquaClear sponge.