SMALL & MODULAR
Octagonal tanks
DiameterHeightLinerPrice
1.7 m0.8 m500 gR4,300
1.7 m0.8 m750–800 gR4,800
1.7 m1.2 m800 gR5,400
2.4 m0.8 m500 gR6,300
2.4 m1.2 m800 gR7,400
2.4 m1.5 m800 gR7,800
3.0 m1.2 m800 gR9,400
3.0 m1.5 m800 gR10,800
BIG FISH SYSTEMS · MIDRAND, SOUTH AFRICADESIGNED & MANUFACTURED FOR AQUACULTURE
TANKS · RACEWAYS · CMES COMPONENTS · AERATION
A tank must do more than hold water.
Purpose-built equipment that supports circulation, oxygen distribution, solids movement, daily operation and long-term aquaculture performance.
DESIGNED AROUND THE FISH
Function comes before the cheapest purchase price.
Fish consume oxygen and release solid and dissolved waste into the same water in which they live. Tank shape influences whether that waste moves towards collection or remains trapped in low-flow areas.
Our tanks use aquaculture-specific geometry, galvanised structural frames and liners selected for the water depth. Sloped transitions and reduced sharp corners improve movement and cleaning.
BUILT TO WORKGalvanised support · shaped liner · serviceable structure
01
Water movement
Geometry supports controlled circulation rather than stagnant corners.
02
Solids control
Waste can be directed towards collection and removed more efficiently.
03
Operator access
Tank height and form are matched to broodstock, fry or grow-out work.
04
Long service
Quality liners protected from direct sunlight can provide many years of use.
TRANSPARENT TANK PRICING
Choose by function, diameter and operating depth.
Prices include the galvanised frame, specified liner, manufacturing and standard structural connections. Filtration, delivery and installation are separate.
LARGER PRODUCTION
Dodecagonal tanks
DiameterHeightLinerPrice
4.0 m1.2 m800 gR15,600
4.0 m1.5 m800 gR19,700
6.0 m1.2 m800 gR26,000
6.0 m1.5 m800 gR33,000
8.0 m1.2 m800 gR39,000
8.0 m1.5 m800 gR43,000
9.5 m1.2 m800 gR48,000
9.5 m1.5 m800 gR52,000
Tank-only prices in South African randNo VAT currently charged · Prices subject to confirmation · Site must be level and prepared
AQUACULTURE RACEWAYS
Workable heights. Efficient floor space.
Rounded and sloped transitions reduce dirt traps, while the selected height makes broodstock handling, seining, fry work or grow-out practical.
HeightLinerTypical applicationPrice
0.35 m500 gRaft aquaponics, hydroponics and bioponicsR450/m²
0.8 m500 gBroodstock, fry and fingerling productionR550/m²
1.0 m800 micron PVCBroodstock and fry productionR740/m²
1.2 m800 micron PVCIntermediate and general productionR800/m²
1.5 m800 micron PVCCMES grow-out racewayR950/m²
CMES COMPONENTS
Buy the complete system—or only the part you need.
Components can be integrated into a new package or supplied to improve an existing aquaculture facility.
SOLIDS COLLECTION
CMES collectors
The vertical collector uses a settlement zone, clear inspection section, conical bottom and drain valve to make removed solids visible and easy to flush.
1.0 m collector R2,0001.7 m collector R2,700
R1,750
25 mm airlift riser, fish-exclusion cage, weight section and integrated perforated air ring. Tested to lift approximately 300 mm above the waterline.
Custom quoted
A compact biological reactor for CMES Plus, followed by secondary collection and gravity return.
R32–R77/m
12 mm pipe at R32 per running metre and 22 mm pipe at R77 per running metre.
ENERGY-EFFICIENT AERATION
Reliable air pumps with serviceable diaphragm kits.
We have used this pump range in aquaculture systems for approximately 15 years because it is energy conscious, durable and supported by cost-effective spares.
Air pumps
ModelCasingPrice
PLP40Plastic casingR2,475
PLP60Plastic casingR2,695
LP100Cast alloy casingR3,875
LP200Cast alloy casingR6,592
Air manifolds
ModelTypical matchPrice
Two-circleCompact CMES applicationsR380
Three-circleMatched to LP40R480
Four-circleMatched to LP60R580
Five-circleLP60 or LP100 applicationsR730
DIAPHRAGM KITSPLP40 / PLP60: R285LP100: R385LP200: price pendingEach kit contains two diaphragm rubbers and four valves. Replacement is normally required only after extended service and is not included with new systems.
MODULAR SUPPLY
One component, one tank package or the whole farm.
Customers can purchase equipment individually, combine a tank with CMES filtration, or commission a complete installation designed around production capacity and local conditions.
01Individual component02Tank and filtration package03Complete production module04Custom farm design
WHAT STANDARD TANK PRICING INCLUDESGalvanised frameSpecified linerManufacturingConnections and standard fasteners
QUOTED SEPARATELYCMES and filtrationDelivery and installationPlumbing and electricalBuildings and site preparation
REQUEST THE RIGHT EQUIPMENT
Tell us what the tank must do.
Send the intended species, fish size, biomass, available space, water depth, location and whether you need a tank only or a complete operating system.