Good Tanks For A Single Betta

[Pidgecbr600rr]

Been searching for a nice tank for a betta for the last week, there doesnt seem to be much choice so far in small tanks around the 20litre mark, can anyone make sugestions?

Also alot of small tanks have a mirrored back, is this a good idea for a betta?

 

[sparky_555]

Morrored back tanks generally arnt a good idea as the betta can tire thereself out by flaring.
As for tanks theres always Ebay! or if you have a wilko's near you they have a 2.5 gallon critter keeper for £4.99