Buying a 300 Gallon Acrylic Aquarium
A 300 gallon aquarium is a long-term build. This guide covers what TRUVU offers at this size, what the tank actually holds, how it ships, and what to plan for before it arrives. Every TRUVU aquarium is built to order from cell cast acrylic in Arizona.
TRUVU 300 gallon sizes
| Model | Dimensions (L × W × H) | Actual gallons | Panels | Price from* |
|---|---|---|---|---|
| 300 T Freshwater | 96" × 24" × 30" | 299 | 1/2" body, 1/2" top | $3,789.99 |
| 300 W Freshwater | 96" × 30" × 24" | 299 | 1/2" body, 1/2" top | $3,789.99 |
| 300 T Saltwater (built-in overflow) | 96" × 24" × 30" | 299 | 1/2" body, 1/2" top | $3,999.99 |
| 300 W Saltwater (built-in overflow) | 96" × 30" × 24" | 299 | 1/2" body, 1/2" top | $3,999.99 |
*Prices as of November 2026. See each product page for current pricing.
T or W? The T (tall) model is 30" deep top to bottom, which gives more vertical swimming room. The W (wide) model is 30" front to back, which gives more room for aquascaping and is easier to reach to the bottom. All four hold 299 actual gallons.
Freshwater or saltwater configuration
Both use the same cell cast acrylic. Freshwater models have top cutouts for heaters, canister filters and hang-on filters. Saltwater models have a built-in overflow box, a standard 1" bulkhead drain hole and IRS return holes for feeding a sump. The bulkhead and IRS kit are sold separately.
Stand and support
A 300 gallon tank needs full, solid support under the entire bottom. A stand that supports only the perimeter voids the warranty. The TRUVU M5 stand for 96x24 fits the 300 T, and the M5 stand for 96x30 fits the 300 W. Setup steps are in our M5 stand instructions.
Lead time, freight and delivery
- Built to order. These tanks usually ship in 4–5 weeks, which is an estimate and not a guarantee.
- Free freight within the contiguous US, because the tank alone is over $1,499.
- The tank arrives by freight truck and is delivered curbside by liftgate. Plan for enough people to carry a 96" tank inside, and measure your doorways and hallways first.
- Note any visible packaging damage with the driver before you sign. Then email us within 48 hours. See our Shipping Policy.
Warranty and returns
TRUVU aquariums carry a 2-year limited warranty against leaks caused by a manufacturing defect. Built-to-order tanks can't be returned once production starts. See the Refund Policy.
Need a different size?
We build custom rectangular acrylic aquariums up to 96" L × 36" W × 36" H.
FAQ
How much water does a 300 gallon TRUVU aquarium actually hold?
All four 300 gallon models, freshwater and saltwater, list 299 actual gallons.
How thick is the acrylic?
All 300 gallon models use 1/2" acrylic on the body and the top.
How long does a 300 gallon acrylic tank take to build?
Usually 4–5 weeks from the order date, depending on the production queue.
Is shipping free?
Yes. Orders of $1,499 or more ship free by freight in the contiguous US. Alaska, Hawaii and international orders are quoted separately.