Supplier Knowledge · Protein Skimmers / Foam Fractionators
Protein Skimmers & Foam Fractionators — Buyer's Guide
Foam fractionators remove dissolved organic matter (DOC) and fine solids in marine and brackish RAS. Missing them causes biofilter shocks, browning and foaming across the plant.
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Typical applications
- Marine RAS (salmon, sea bass, sea bream, shrimp)
- Brackish nurseries and hatcheries
- Live-holding for premium markets
Project sizes
- Small: $10K–$100K
- Commercial: $100K–$1M
Selection criteria
- DOC removal at design salinity
- Bubble size distribution
- Air-to-water ratio
- Automation and cleaning
Questions buyers should ask
- Guaranteed DOC and TSS removal at my salinity?
- Ozone-compatible design?
- Auto-clean or manual?
Common procurement mistakes
- Skipping skimmers in marine RAS
- Sizing for average not peak DOC
RFQ recommendations
- Tender against water-quality KPIs, not model size
Related tools & guides
Calculators
Buyer's Guides
Project templates
Regulations & standards
Frequently asked questions
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