PetSmart has dollar per gallon tanks. Up to 40g breeder.

[Jayreefer]

Ordered one of these kits to make my 40B into my new sump. They have some good reviews on other forum and I like the filter sock setup.

http://www.exoticmarinesystems.com/collections/sump-kits

 

[Opus123]

I'm just going to do a TIY stand out to 2x4s and wrap it in halfway decent wood.

Wish that was an option but it isn't.