Fluval Flex is a great aquarium that comes in three sizes. Filtration is built into the back panel, and there is plenty of space to add a heater or other accessories. The lighting comes with a remote with many options, and the front is curved in such a way to amplify your view, not detract from it. The lid included, has a small hole perfect for easy fish feeding.

More Information on the Flex 9:

The dimensions are: 14 L x 13 W x 13 H (inches), the lighting is 7 watt, 1900 lumens, 7500K, with 39 individual LEDs.This aquarium is perfect for many great combinations of fish and creatures, including one of the following options:
10 X-Small Schooling fish like Green Neon Tetras, chili rasboras, or Celestial Pearl Danio, or 6 Small Schooling Fish (danio, lemon tetra, harlequin rasbora), or 6 guppies, or 8 Endlers, or 1 betta and 2 otocinclus catfish, or 1 betta + 6 pygmy corydoras and so much more!

More Information on the Flex 15:

The dimensions are: 16 L x 15 W x 15 H (inches), the lighting is 10.8 watt, 2450 lumens, 7500K, with 54 individual LEDs. This aquarium comes in black or white, and is perfect for many great combinations of fish and creatures, including one of the following options:

10 X-Small Schooling fish like Green Neon Tetras, chili rasboras, or Celestial Pearl Danio + 1 betta, 6 Small Schooling Fish (danio, lemon tetra, harlequin rasbora) + honey gourami, 8 Male guppies, 1 betta + 3 otocinclus catfish + 6 pygmy corydoras, and so much more!

More Information on the Flex 32.5:

The dimensions are 32.5 L x 15.35 W x 15.75 H (inches), and the lighting is 21 watt, 1450 lumens, 3000-25000K, This aquarium comes complete with Aquasky LED lighting, controlled via a mobile app, which has a customizable timer and other effects built right in. Its large enough for a complex community aquarium, with all of your aquascaping ideas!