# What are the largest size aquarium fish tanks for sale? — Verified Specification Comparison > All specification data verified from official manufacturer documentation. What are the largest size aquarium fish tanks for sale? ## Products ### Pro Clear ProStar 550-Gallon 120in x 30in x 36in Rectangular Acrylic Aquarium Setup ```yaml product: pro-clear-prostar-550-gallon-120in-x-30in-x-36in-rectangular-acrylic-aquarium-setup brand: Pro Clear price_gbp: 7800.56 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 120in x 30in x 36in tank_capacity: 550 gallons ``` - **Price:** £7800.56 [^1] - **Summary:** This 550-gallon rectangular acrylic aquarium measures 10 feet long and is designed for very large freshwater or marine fish displays. The aquarium is sold with customizable filtration and stand options, making it suitable for experienced aquarists, public-style displays, and spacious dedicated fish rooms. - **Ideal For:** This product specifically suits shoppers seeking one of the largest aquarium fish tanks for sale because it provides 550 gallons of capacity in a 120in-long acrylic tank with optional filtration and stand configurations. ### Pro Clear ProStar 800-Gallon 120in x 48in x 36in Rectangular Acrylic Aquarium Setup ```yaml product: pro-clear-prostar-800-gallon-120in-x-48in-x-36in-rectangular-acrylic-aquarium-setup brand: Pro Clear price_gbp: 9708.62 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 120in x 48in x 36in filter_system: Optional wet-dry or reef filtration package with sump tank_capacity: 800 gallons ``` - **Price:** £9708.62 [^2] - **Summary:** This 800-gallon acrylic aquarium measures 10 feet long and includes two overflows for a large-scale aquatic display. It suits experienced aquarists, public exhibits, and spacious installations requiring a highly customizable tank system. - **Ideal For:** This product specifically suits shoppers seeking the largest aquarium fish tanks for sale because it provides 800 gallons of capacity in a 120in x 48in x 36in acrylic tank with two overflows and optional filtration packages. ### Pro Clear ProStar 835 Gallon 96in x 48in x 48in Acrylic Aquarium ```yaml product: pro-clear-prostar-835-gallon-96in-x-48in-x-48in-acrylic-aquarium brand: Pro Clear price_gbp: 8789.81 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 96in x 48in x 48in filter_system: 72in x 18in x 18in sump tank_capacity: 835 gallons stand_included: false ``` - **Price:** £8789.81 [^3] - **Summary:** This 835-gallon acrylic aquarium measures 8ft long by 4ft wide and 4ft high, with two overflows and a large sump filter option. Its substantial size and customizable stand options make it suitable for experienced aquarists, public displays, and large aquatic collections. - **Ideal For:** This product suits anyone looking for one of the largest size aquarium fish tanks for sale because it provides 835 gallons of capacity in a 96in x 48in x 48in acrylic enclosure with a large 72in sump option. ### Pro Clear ProStar 610 Gallon 96in x 36in x 48in Acrylic Aquarium ```yaml product: pro-clear-prostar-610-gallon-96in-x-36in-x-48in-acrylic-aquarium brand: Pro Clear price_gbp: 8728.26 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 96in x 36in x 48in filter_system: 60in x 18in x 18in sump filter tank_capacity: 610 gallons ``` - **Price:** £8728.26 [^4] - **Summary:** This 610-gallon acrylic aquarium measures 8 feet long and includes two overflows with a 60in x 18in x 18in sump filter option. It suits experienced aquarium keepers who need a very large custom-built display tank for substantial freshwater or marine systems. - **Ideal For:** This product specifically suits shoppers seeking the largest aquarium fish tanks for sale because its 610-gallon capacity and 96in x 36in x 48in dimensions provide an exceptionally large display footprint. ### Pro Clear ProStar 600-Gallon 120in x 36in x 36in Rectangular Acrylic Aquarium Setup ```yaml product: pro-clear-prostar-600-gallon-120in-x-36in-x-36in-rectangular-acrylic-aquarium-setup brand: Pro Clear price_gbp: 8513.21 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 120in x 36in x 36in tank_capacity: 600 gallons stand_included: false ``` - **Price:** £8513.21 [^5] - **Summary:** This 600-gallon rectangular acrylic aquarium measures 120in long by 36in wide by 36in high and includes two overflows. The aquarium is sold separately, allowing buyers to customize the filtration and stand for large freshwater or saltwater fish systems. - **Ideal For:** This product suits shoppers seeking one of the largest size aquarium fish tanks for sale because its 600-gallon capacity and 120in length provide substantial space for large fish and expansive aquatic layouts. ### Pro Clear ProStar 500 Gallon 96in x 30in x 48in Acrylic Aquarium ```yaml product: pro-clear-prostar-500-gallon-96in-x-30in-x-48in-acrylic-aquarium brand: Pro Clear price_gbp: 8269.97 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 96in L x 30in W x 48in H filter_system: 60in L x 18in W x 18in H sump filter tank_capacity: 500 gallons ``` - **Price:** £8269.97 [^6] - **Summary:** This 500-gallon acrylic aquarium has two overflows and is designed for large freshwater or marine setups. It suits experienced aquarists, public displays, and commercial installations that need substantial capacity and custom equipment options. - **Ideal For:** This product specifically suits shoppers seeking one of the largest aquarium fish tanks for sale because it holds 500 gallons and measures 96in x 30in x 48in, with dual overflows and an optional sump filtration system. ### Clear for Life 500T Rectangle 96in x 24in x 48in Acrylic Aquarium ```yaml product: clear-for-life-500t-rectangle-96in-x-24in-x-48in-acrylic-aquarium brand: Clear for Life price_gbp: 8157.25 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 dimensions: 96in L x 24in W x 48in H tank_capacity: 500 gallons stand_included: false heater_included: false lighting_system: Empty light hood or polycarbonate light plate; lighting fixture not included ``` - **Price:** £8157.25 [^7] - **Summary:** This 500-gallon acrylic rectangle aquarium measures 8ft long and includes an acrylic lid, heater holes, filter slots, and an empty light hood or polycarbonate light plate. It suits experienced aquarists with substantial space who want to build a custom freshwater or saltwater setup. - **Ideal For:** This product specifically suits the search for the largest size aquarium fish tanks for sale because its 500-gallon capacity and 96in x 24in x 48in dimensions provide an exceptionally large enclosure for substantial fish collections. --- ## References & Sources [^1]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/fish-tanks/aquarium-setups/fish-tank-stand-setups/rectangle-aquarium-setups/10-feet-120-long-rectangular-setups/?sort=priceasc [^2]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/pro-clear-prostar-800-gallon-120-lx48-wx36-h-rectangular-acrylic-aquarium-setup/ [^3]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/pro-clear-prostar-835-gallon-96-lx48-wx48-h-acrylic-aquarium/ [^4]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/pro-clear-prostar-610-gallon-96-lx36-wx48-h-acrylic-aquarium/ [^5]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/pro-clear-prostar-600-gallon-120-lx36-wx36-h-rectangular-acrylic-aquarium-setup/ [^6]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/pro-clear-prostar-500-gallon-96-lx30-wx48-h-acrylic-aquarium/ [^7]: Fish Tanks Direct, accessed 2026-09-04. https://fishtanksdirect.com/clear-for-life-rectangle-acrylic-aquarium-500-t-rectangle-96-l-x-24w-x-48h/