Ornamental Fish Breeding Farm Break-Even: $778K Monthly

Fixed costs $62.2K/mo Base monthly cost

Contribution margin 80% After variable costs

Break-even revenue $77.8K/mo Revenue to cover

Break-even timing Month 8 Model break-even

Break-even calculator

Use this calculator to test monthly revenue against direct costs and fixed overhead, then see where break-even lands.

Lean Base Full

Monthly revenue Revenue is the cash that pays direct costs and fixed overhead. $ Slow month Peak month Variable expenses These direct costs rise with sales, like feed, shipping, and fees. $ Tight costs High costs

Money available to cover fixed costs $474,700 $593,400 revenue - $118,700 variable expenses

Margin ratio

80%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the farm must cover before profit starts. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which ornamental fish farm expenses are fixed, and which move with sales?

Cost classification

Break-even only works if fixed monthly commitments stay separate from expenses that rise with fish volume and shipped orders. Treating utilities, water, and testing as flat understates the sales needed once tank load rises.

Expense	Cost	Break-Even Treatment	Common Mistake
Facility Lease	Fixed	Include the $12,000 monthly lease in fixed overhead for each break-even month.	Spreading rent per fish and hiding the true monthly hurdle.
Industrial Electricity and HVAC	Semi-fixed	Use the $6,500 monthly base, then add step increases when tank load or climate control capacity expands.	Treating utilities as flat while more tanks and denser stocking raise demand.
Water and Filtration Maintenance	Semi-variable	Model the $2,200 monthly base plus usage tied to water changes, filtration load, and stocking density.	Treating water and filtration as flat when live biomass rises.
Laboratory Supplies and Testing	Semi-variable	Start with the $1,200 monthly testing budget, then flex it with breeding cycles, mortality events, and quality checks.	Keeping testing flat even when production volume and disease risk increase.
Specialized Aquatic Nutrition and Feed	Variable	Apply the first-year 8% rate to production-linked sales volume and mix.	Budgeting feed as fixed overhead instead of tying it to fish volume.
Expedited Live Animal Shipping and Packaging	Variable	Apply the first-year 6% rate to shipped sales, since packaging and live freight move with orders.	Burying shipping in overhead and overstating margin on shipped orders.
E-commerce and business-to-business Platform Transaction Fees	Variable	Apply the first-year 2% fee to online and business-to-business sales processed through the platform.	Charging transaction fees to retained juveniles or unsold production.
Year 1 Wages	Fixed	Treat the roughly $35,000 monthly salary base as fixed for break-even until staffing levels change.	Modeling core staff as per-fish labor and understating the opening-month cash burn.

How does break-even shift from lean to base to full scale in an ornamental fish breeding farm?

Scenario table

Lean sits right on the line, base adds a real cushion, and full scale widens it fast. The swing comes from higher sales, better cost absorption, and lower variable cost as a share of revenue.

These scenario figures are planning assumptions, not guarantees, and actual results can move with mortality, mix, and grow-out timing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean break-even floor	$77,750	$15,550	$62,200	80%	$0	At the line, so any slip hurts.
Base year one operating plan	$173,375	$34,675	$62,200	80%	$76,500	Clear cushion above fixed costs.
Full mature-scale case	$882,681	$123,575	$101,783	86%	$657,323	Strong cushion, but timing still matters.

What breaks the break-even plan for an ornamental fish breeding farm?

Stress test

At the base plan, the farm still clears break-even by about $95.6k of revenue cushion. The cushion gets eaten fast if mortality tops 10%, juvenile losses pass 15%, shipping losses rise, buyers slow down, or power and HVAC costs jump.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$77,750	$95,625 cushion	Wide cushion at the base plan.
Revenue shortfall	Revenue drops 20% to $138,700; variable load stays at 20%.	$77,750	$60,950 cushion	Still above break-even, but the cushion shrinks.
Fixed-cost rise	Fixed costs rise 15% to $71,530; revenue stays at $173,375.	$89,413	$83,963 cushion	Lease and utility pressure still leaves room.
Margin pressure	Variable load rises from 20% to 25%; revenue stays at $173,375.	$82,933	$90,442 cushion	Shipping losses and mortality matter, but the plan holds.
Combined pressure	Revenue falls to $62,200, variable load rises to 25%, and fixed costs rise 15%.	$95,373	$33,173 gap	Sales and cost stress together push the farm below break-even.

What should you verify before you lock the lease and buy broodstock?

Founder checklist

Test the farm against its monthly burn, sales floor, and early loss rates before you commit. If buyer demand, launch readiness, and cash cushion are not proven, the Month 7 cash trough can turn a good setup into a funding scramble.

1Buyer commitments$77.8K/mo

Verify signed buyer commitments or repeat orders can clear at least $77,750 a month before you lock the lease, because that is the fastest check that demand can cover the farm's fixed load.

2Launch readinessCycle 1

Confirm quarantine tanks, filtration, and backup power are live before cycle 1, because live fish losses are hardest to recover when the first shipments go out too early.

3Fixed burn$62.2K/mo

Make sure the site can carry the $12,000 lease, $6,500 electricity and HVAC, and the rest of the fixed stack; together they add up to about $62,200 a month before variable costs.

4Contribution margin80% CM

Contribution margin means what's left after variable costs; at Year 1 rates, feed, chemicals, shipping, and fees take about 20% of sales, leaving about 80% to cover the fixed burn.

5Cash cushion-$380K

Hold cash for the -$380,000 minimum cash point in Month 7, because the model dips deep before scale and payback starts to show up.

6Staffing rampMonth 13

Keep the added administrative hire off payroll until sales channels are proven, since that role starts in Month 13 and premature headcount can outrun the order book.