PRODUCTS

Modular PVC fish-farming tanks — quick assembly, energy-saving, food-safe liner, lower cost than concrete. Any size for biofloc & RAS. Factory-direct from SIGMA. Get a quote.

Durable HDPE fish-farming tanks — on-site welding, 15-year liner, lower cost than earthen ponds. Any diameter & depth. SIGMA ships worldwide. Get sizes & a quote in 12h.

Galvanized steel fish-farming tanks with food-grade liner — strong, fast on-site assembly, long service life. Custom diameters for fish & shrimp. Factory-direct from SIGMA. Get a quote.

The Rectangle fish tank are designed to supply aquaculture anywhere needed and immediately available. The tanks is easy installation. The wide range of optional features and the possibility customized, suitable for different indoor and outdoor applications.

Rectangular fish-farming tanks for hatcheries, RAS & live-holding — space-efficient layout, custom dimensions, food-safe finish. Factory-direct from SIGMA. Get a quote.

Corrosion-proof FRP (fiberglass) fish tanks for hatcheries, RAS & live-holding. Custom shapes & sizes, smooth food-safe surface. Manufacturer-direct from SIGMA. Get a quote.

Stackable crab box / crab-condo systems for soft-shell & mud crab farming — individual cells, integrated water flow, space-saving. Custom setups from SIGMA. Request a quote.

HDPE floating fish cages & net pens for lakes, reservoirs & sea farming — durable frames, wave-resistant floats, custom sizes. Factory-direct from SIGMA. Get a quote.

Energy-efficient paddle wheel aerators for shrimp & fish ponds — strong circulation & oxygen transfer, durable impellers. Multiple sizes, factory-direct from SIGMA. Get a quote.

High-efficiency roots blowers for biofloc, RAS & pond aeration. Direct-from-factory pricing, multiple capacities, worldwide export. Request specs & a quote from SIGMA engineers.

High-pressure regenerative (ring) blowers for aquaculture aeration, RAS & biofloc — oil-free, quiet, energy-efficient. Multiple capacities, factory-direct from SIGMA. Get a quote.

Oxygen / Speece cones that dissolve pure O2 for high-density RAS & biofloc farms. High transfer efficiency, multiple capacities. Manufacturer-direct from SIGMA. Request specs & a quote.

Micro/nano-bubble oxygen diffuser pipes & aeration hose for biofloc and pond fish farming — fine bubbles, high oxygen transfer, clog-resistant. Factory-direct from SIGMA. Get a quote.

PSA oxygen generator for aquaculture makes high-purity oxygen on site from ambient air, feeding cones and diffusers for dense fish and shrimp ponds.

Solar pond aerator system pairs a solar panel and battery bank with a paddle wheel or air pump, running off-grid pond aeration day and night.

Automatic & smart fish-feeding machines for ponds, cages & RAS — programmable timing, even broadcast, saves labor & feed. Multiple capacities from SIGMA. Get a quote.

Fish feed pellet machine — a flat-die pellet mill that presses your own mix into sinking fish feed pellets for tilapia, catfish, carp and shrimp. Electric or diesel drive.

High-protein floating & sinking feed for tilapia, shrimp & carp — optimized FCR, stable in water, full size range. Bulk aquafeed supply from SIGMA. Request details & a quote.

Aquaculture probiotics for biofloc, ponds & RAS — stabilize water quality, improve gut health & feed conversion, reduce disease. Bulk supply from SIGMA. Request specs & a quote.

Durable submersible water pumps for fish ponds, RAS & aquaculture circulation — high flow, low energy, corrosion-resistant. Multiple capacities, factory-direct from SIGMA. Get a quote.

Online multi-parameter water-quality monitor for aquaculture — measures dissolved oxygen, pH, ORP, TDS & conductivity in real time. Protect your stock. Factory-direct from SIGMA.

Heating systems & heat pumps for fish tanks, hatcheries & RAS — precise temperature control, energy-efficient, for warm-water species. Factory-direct from SIGMA. Get a quote.

Complete recirculating aquaculture (RAS) systems: drum filters, biofilters, oxygen cones, pumps & monitoring. Custom-designed for your species & volume. Manufacturer-direct. Get a quote.

Self-cleaning rotary drum filters for RAS & aquaculture — automatic solids removal, multiple flow rates & micron options. Factory-direct from SIGMA. Request sizing & pricing.

Moving-bed & media biofilters for RAS and aquaculture — high surface-area media, stable nitrification, removes ammonia. Custom sizing, factory-direct from SIGMA. Request a quote.

Industrial protein skimmers / foam fractionators for RAS & marine aquaculture — removes dissolved organics, improves water clarity & oxygen. Factory-direct from SIGMA. Get a quote.

UV sterilizers for aquaculture & RAS — kill bacteria, parasites & algae spores, prevent disease without chemicals. Multiple flow rates, factory-direct from SIGMA. Get a quote.

High-surface-area bio filter media (MBBR carriers, bio-balls) for RAS & aquaculture biofilters — fast nitrification, durable. Bulk supply from SIGMA. Request specs & a quote.

Industrial bag filters for aquaculture & RAS — fine particle removal, easy bag change, multiple micron ratings. Factory-direct from SIGMA. Request specs & a quote.

Motorized self-cleaning screen filters for aquaculture & RAS — automatic backwash, fine mesh, low maintenance. Multiple sizes, factory-direct from SIGMA. Request specs & pricing.

High-flow commercial sand filters for aquaculture, RAS & pond water treatment — efficient solids removal, easy backwash. Multiple sizes, factory-direct from SIGMA. Get a quote.

Reliable diesel generators for fish farms & aquaculture — backup power for aerators, pumps & RAS, multiple kVA ratings. Factory-direct from SIGMA. Request specs & a quote.

Fish egg incubators & hatchery jars for tilapia, trout & carp — high hatch rates, adjustable flow, complete hatchery setups. Manufacturer-direct from SIGMA. Request details & a quote.

Strong aquaculture fishing nets, seine & harvest nets for fish & shrimp farms — knotless options, custom mesh & length. Factory-direct from SIGMA. Request sizes & a quote.