Amazon.com : Fluval SPEC III Aquarium Kit, Aquarium with LED Lighting and 3-Stage Filtration System, 2.6 Gallon, White, 10517A1 : Aquarium Starter Kits : Pet Supplies
Check your PetSmart! Unsure if it's storewide, but my store is not carrying fluvial tanks anymore so the ones they do have are HEAVILY discounted : r/Aquascape
Amazon.com : Fluval SPEC Aquarium Kit, Aquarium with LED Lighting and 3-Stage Filtration, 5 Gallon, White : Aquarium Starter Kits : Pet Supplies