Best 220-gallon aquariums for show-tier reef or display-quality oddball. Top picks across budget tiers, what livestock fits, what to avoid, dimensions, weight, and FAQ. Updated May 2026.
30" tall option for vertical aquascaping.
Turn-key reef build.
The largest Reefer AIO. Show-quality build.
Suitable:
Avoid:
Beyond the tank itself, you'll need:
Use the stocking calculator to verify your livestock plan, the weight calculator to confirm your floor can handle it, and the electricity calculator for ongoing operating cost.
Standard 220-gallon aquarium dimensions: 72"×24"×30" or 84"×24"×24". Filled weight ~2200 lbs.
~2200 lbs filled (tank + water + sand + rock). Standard residential floors support ~40 lb/sq ft live load - tanks of 220g+ should be placed over a load-bearing wall or perpendicular to floor joists.
Yes - small marine setups (FOWLR or nano reef) work in 20g+. The reef setup options for this size are documented on the 20g FOWLR setup guide.
Total 220-gallon build cost varies by tier: budget $1320-2640, mid $2640-5500, premium $5500-11000+. Use the reef build calculator for detailed breakdown.
Browse the full aquarium-by-size buying guide for 11 other tank sizes. Or jump to the step-by-step setup guides, the stocking blueprints, or the calculator collection.