Fiberglass Circular Tanks

Dura-Tech fiberglass circular tanks are built for hatchery, nursery, rearing, and grow-out applications where dependable water movement and easy tank maintenance are essential. Circular tanks are widely used in aquaculture because they support efficient water circulation, solids movement, and flexible stocking layouts.

Dura-Tech has been building fiberglass rearing and grow-out tanks for the aquaculture industry since 1986, with a wide range of standard tank models available and custom sizes available for unique system requirements. Our circular tanks are rust-proof, lightweight, durable, and built ready to use with a smooth gelcoat interior surface that is easy to clean and maintain.

For facilities with specialized needs, circular tanks can be configured with sumps, double drains, standpipes, side pods, support skirts, sloped bottoms, insulation, and interior or exterior gelcoat colour options. Fiberglass construction also allows additional strength or insulation to be built directly into the tank during fabrication.

Best for:

  • Hatchery rearing systems
  • Nursery tanks
  • Grow-out tanks
  • Research systems
  • RAS and flow-through aquaculture
  • Freshwater and saltwater applications

Design options:

  • Flat or sloped bottoms
  • Standard or double-drain sumps
  • Internal or external standpipes
  • Side pods and side boxes
  • Support stands or skirts
  • Encapsulated insulation
  • Custom fittings and mounting reinforcement

Get a Quote

Dura-Tech fiberglass transport tank with center drain and lifting hardware mounted on truck bed

Complete your fiberglass tank system

Dura-Tech offers accessories for both aquaculture and industrial fiberglass tanks, including covers, fittings, sumps, insulation, manways, vents, heating systems, ladders, platforms, gauges, and custom components.