Start with Species
Pick your centerpiece fish first.
Every other decision flows from its requirements.
Required Tank Size
Look up minimum tank for your centerpiece and double it.
That is the realistic target — not the minimum.
Water Parameter Requirements
Match species to your tap water or plan for RO.
Fighting tap water chemistry daily is exhausting.
Budget
Tank, stand, filter, heater, light, substrate, hardscape, plants, fish.
Multiply initial estimate by 1.5x for realistic total.
Ongoing: food, water conditioner, electricity, replacement bulbs, medication kit.
Experience Needed
Beginner: community tanks with hardy species.
Intermediate: cichlid tanks, brackish, planted CO2.
Advanced: saltwater, discus, wild-caught species.
Timeline
Week 1-4: equipment and cycling.
Month 2-3: first hardy stock.
Month 4-12: build to full stocking.
Years 1-3: mature aquascape refinement.