20L Filter Recommendation

[MightyWings]

Hi all,

Looking for recommendations on a filter for a 20L tank. I've previously used Stingrays but had a few issues with them.

 

[GlosGraham]

I've never had a tank that small but when I had a 60 ltr the fluval internals seemed to work well. No frills but easy to operate and clean etc

 

[Fishmanic]

Which fish are going to be in the tank?

 

[Essjay]

Is this 20 litres or 20 gallon long?

If it's 20 litres the best filter is a sponge filter powered by an air pump. I doubt you will find an internal/HOB filter that won't turn the tank into a whirlpool.
The only fish suitable for 20 litres is a betta - or shrimps - and they don't like a strong water flow so sponge filters are ideal for them.