AquaBlueprintDesign your RAS with confidence
A professional recirculating aquaculture system design calculator. Size your biofilter, aeration, pumps, degasser, and more — backed by proven engineering formulas.
Everything you need for RAS design
From quick feasibility checks to full commercial production planning — one platform covers it all.
14 Calculation Modules
- •Gas physics, dissolved oxygen saturation, and O₂ balance
- •TGC growth modelling and mass balance (feed, TAN, CO₂, TSS)
- •Biofilter sizing — MBBR, fluidised sand, trickling, or fixed-bed
- •Flow rates, pump sizing, tank geometry, and mechanical filtration
- •CO₂ degasser, aeration and O₂ supply, heating and cooling loads
- •Water exchange rates and complete Bill of Materials
32 Species Database
- •18 named finfish on Advanced — salmon, barramundi, trout, tilapia, kingfish, and more
- •7 crustaceans — shrimp, prawn, crayfish, lobster (Advanced tier)
- •4 bivalves and 3 seaweed species for IMTA designsComing soon
- •Water quality targets, growth coefficients, and stoichiometric constants pre-populated
Free Preview
- •Try the full calculator free with a generic marine or freshwater finfish
- •See your water quality, mass balance and growth-target results
- •Equipment sizing, Bill of Materials and the full species library unlock with Advanced
Full Design Wizard
- •9-step guided wizard for detailed RAS design
- •Configure tank geometry, biofilter type, aeration, degassing, and thermal loads
- •Interactive flow diagram showing your system layout
- •Print-ready PDF reports with Bill of Materials
Multi-stage Production
- •Production-target sizing: set your harvest goal and the system sizes itself
- •Multi-stage nursery-to-harvest planning, as separate RAS or one modular system
- •Per-cycle or per-year production targets with multi-RAS splitting
IMTA & Polyculture
Coming soon- •Multi-species integrated systems with nutrient coupling calculations
- •Combine finfish, shellfish, and seaweed in a single design
- •Nutrient reduction analysis showing extractive species effectiveness
Plans
Start free. Upgrade when you need more.
Free
$0Full-featured RAS design calculator — no credit card required.
- ✓Generic marine & freshwater finfish
- ✓Full design wizard
- ✓Water quality, mass balance & growth results
- ✓Equipment sizing & reports are preview-only
- ✓3 saved designs
- ✓Ad-supported
Advanced
Most PopularAdvanced production planning for serious RAS designers.
- Everything in Free, plus:
- ✓The complete results: equipment sizing, biofilter, pumps, degasser & flows
- ✓Bill of Materials & full design reports
- ✓The full species library (finfish + crustaceans)
- ✓Production-target & multi-stage sizing (separate-RAS or modular)
- ✓Cohort tracking & production projects
- ✓Unlimited saved designs & no ads
- ✓Design version history
- ✓Priority support
Coming soon
- ○Bivalve & seaweed calculators
- ○IMTA / polyculture calculator
- ○RAS design & hatchery manual resources
- ○Unbranded / white-label reports
- ○P&ID tool & plumbing designer
- ○Hydraulic calculator
- ○Economic analysis / CAPEX-OPEX calculator
Institutional
For universities, research centres, and commercial operators.
- Everything in Advanced, plus:
- ✓Team access & shared design library
- ✓Dedicated support
- ✓Volume licensing available
How it works
From species selection to a complete system design in minutes — no spreadsheets required.
Free
Explore the full design calculator free: pick a generic marine or freshwater finfish, enter your parameters, and see your water quality, mass balance and growth results. Upgrade for the full species library, equipment sizing and bill of materials.
Try it freeAdvanced
Design a complete RAS with a 9-step guided wizard. Configure tank geometry, biofilter type, aeration, degassing, and thermal loads — then export a print-ready PDF report.
Try AdvancedChoose your species
Select from 32 species across finfish, crustaceans, bivalves, and seaweed. Water quality targets, growth coefficients, and stoichiometric constants are pre-populated automatically.
Enter your design parameters
Use Basic (3 steps) for rapid feasibility, or the full 9-step Advanced wizard to configure tank geometry, biofilter type, aeration, degassing, thermal loads, and more.
Run the calculation
The engine simultaneously solves gas physics, growth model, mass balance, flow rates, biofilter sizing, pump sizing, aeration, degassing, and thermal loads in a single click.
Review & export
Browse colour-coded results section by section, review the Bill of Materials, resolve any design warnings, then export a print-ready PDF report.
AquaBlueprint was created by LoTech Aquaculture Pty Ltd
An Australian aquaculture engineering consultancy specialising in RAS design, system optimisation, and independent expert review.
Get in Touch
Need a custom RAS design, independent expert review, or tailored engineering advice? The team at LoTech Aquaculture is here to help.