| Tank + stand | $200-400 |
| Filter (canister) | $150-300 |
| LED light (high quality) | $150-400 |
| CO2 system + diffuser | $150-300 |
| Substrate (Aquasoil) | $50-100 |
| Hardscape (driftwood + rock) | $50-150 |
| Plants starter pack | $50-150 |
| Fish (community) | $50-100 |
| CO2 refills (every 6-8 weeks) | $5-10 |
| Fertilizers (EI dosing) | $5-10 |
| Electricity (50-100W) | $5-15 |
| Filter floss + media | $3-5 |
| Food | $3-5 |
Plug your specifics into the electricity cost calculator, the reef build budget calculator, and the water change calculator to dial in your actual costs.
Browse all aquarium cost analyses.
Total cost of aquarium-keeping has three buckets: 1) Initial setup - tank, stand, equipment, decor, livestock + first month of supplies. 2) Recurring monthly - electricity, food, water-change supplies, supplements, filter media. 3) Replacement + emergencies - heater every 2-3 years, livestock losses, equipment failures.
The 5-year total typically runs 3-4x the initial setup cost. A $1,500 starter setup becomes $5,000-8,000 over 5 years when you account for everything. Reef tanks scale higher - a $3,500 reef setup runs $15,000-25,000 over 5 years with serious livestock + dosing.
For specific calculators, use our aquarium electricity calculator, reef build budget, monthly cost Q&A, and per-month detailed cost.
What's the cheapest way to start? 20-gallon kit ($150) + community fish ($75) = $225 starter. Avoid going smaller (5-10 gallons swing parameters too fast). Avoid kits with no name brand pumps - they fail in 6-18 months.
Where do most people overspend? 1) Decor + accessories that don't affect fish health. 2) Premium salt brands when budget brands work. 3) Brand-loyalty additives that aren't needed. 4) Buying multiple times because the cheap version failed.
Where should I splurge? 1) Quality heater + Inkbird controller (saves the tank). 2) Reliable pumps (5-10 year lifespan vs 2-year cheap options). 3) Good test kits (cheap kits give bad readings = bad decisions). 4) Captive-bred over wild-caught livestock.
How do I save on electricity? LED over T5/halide. Smaller pumps where possible. Lid your tank to reduce heater runtime. Use timers + Apex/Inkbird automation to optimize photoperiod + heater schedules.
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