BL 40 Back Sump Aquarium 29 × 40 × 30 cm (35L)

BL 40 Back Sump Aquarium – 29 × 40 × 30 cm is designed with an integrated rear sump filtration compartment, providing a clean, organised, and efficient aquarium setup. The built-in back sump provides dedicated space for filtration media and water circulation equipment while helping keep the main display area neat and uncluttered. With dimensions of 29 cm × 40 cm × 30 cm, the aquarium has an approximate gross capacity of 35 litres. The actual usable water capacity may be lower due to the rear sump compartment, glass thickness, filtration media, and operating water level. The integrated back sump supports mechanical and biological filtration and helps maintain effective water circulation. Keeping filtration components in the rear compartment provides a cleaner appearance in the main display area.