Oxygen Supply Equipment for Aquaculture
Dissolved oxygen is the first limit on stocking density: in RAS, biofloc and intensive ponds it is oxygen supply — not tank volume — that decides how many kilograms of fish or shrimp a system can safely carry. This page covers SIGMA’s oxygen supply equipment for aquaculture: dissolved oxygen cones that dissolve pure O2 into process water, nano-tube diffusers for fine-bubble aeration, and root and regenerative blowers that drive airlifts and diffuser grids.
How the pieces combine depends on the farm. Air-based aeration (blowers with diffusers, or paddle wheel aerators) keeps ponds and biofloc tanks mixed and oxygenated at low running cost, while pure-oxygen dosing through a cone lifts saturation fast in high-density RAS, hatchery and live-holding systems.
Need to produce the oxygen itself on site? That is a separate machine — see the PSA oxygen generator for aquaculture, which makes high-purity oxygen from ambient air and feeds the cones and diffusers on this page.
Related equipment
Dissolved oxygen cone
Oxygen / Speece cones that dissolve pure O2 for high-density RAS & biofloc farms. High transfer efficiency, multiple capacities. Manufacturer-direct from SIGMA.
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Oxygen supply diffuse nano pipes for Biofloc fish farm
Micro/nano-bubble oxygen diffuser pipes & aeration hose for biofloc and pond fish farming — fine bubbles, high oxygen transfer, clog-resistant. Factory-direct.
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Paddle Wheel Aerator
Energy-efficient paddle wheel aerators for shrimp & fish ponds — strong circulation & oxygen transfer, durable impellers. Multiple sizes, factory-direct from SIGMA.
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Protein skimmer filter
Industrial protein skimmers / foam fractionators for RAS & marine aquaculture — removes dissolved organics, improves water clarity & oxygen. Factory-direct.
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Regenerative Air Blower
High-pressure regenerative (ring) blowers for aquaculture aeration, RAS & biofloc — oil-free, quiet, energy-efficient. Multiple capacities, factory-direct.
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Root Blower
High-efficiency roots blowers for biofloc, RAS & pond aeration. Direct-from-factory pricing, multiple capacities, worldwide export from SIGMA.
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Submersible Water Pump
Durable submersible water pumps for fish ponds, RAS & aquaculture circulation — high flow, low energy, corrosion-resistant. Multiple capacities, factory-direct.
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Oxygen Generator for Aquaculture (PSA)
PSA oxygen generator for aquaculture makes high-purity oxygen on site from ambient air, feeding cones and diffusers for dense fish and shrimp ponds.
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Solar Pond Aerator
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.
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