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Reef Tank Startup Budget Guide + Essential Calculators

Plan your first reef tank budget with realistic equipment, livestock, and monthly operating costs.

By ReefBay Feb 26, 2026 1 min read
Budget planning worksheet for a beginner reef tank with equipment and monthly cost categories

What a realistic beginner reef budget looks like

Most successful beginner reef tanks land between $1,200 and $3,500 all-in, depending on tank size and whether you buy new or used gear.

Budget buckets to plan

  • Tank, stand, and sump
  • Lighting and flow
  • RO/DI and salt mix
  • Rock, sand, and test kits
  • First livestock and quarantine setup

Calculator-first planning workflow

Before you buy gear, calculate true system size with the Tank Volume Calculator. Then estimate recurring costs with the Water Change Calculator and Salt Mix Calculator.

CTA: build your budget in-app

After running the tools, open /app/calc-tank-volume and /app/article in the ReefBay app to save your plan, track spend, and compare actual costs over time.

Ready to Start Your Reef Journey?

Download the ReefBay app to track your tank parameters, browse coral for sale, and connect with fellow reefers.

Download the ReefBay App
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