Aquarist Toolkit
Free tools to help you plan, stock, and maintain the perfect aquarium.
Fish Identifier
AI PoweredUpload a photo of an unknown fish and our AI will identify the species, provide care information, and suggest compatible tank mates.
Try Identifier →Tank Planner
InteractiveDesign your aquarium visually. Drag and drop fish and plants, check compatibility, get stocking recommendations and equipment suggestions.
Open Planner →Stock Calculator
CalculatorCalculate how many fish your tank can safely hold based on volume, filtration, and species requirements. Prevents overstocking.
Calculate Stock →AquaStock — Stocking Calculator
InteractiveAdvanced stocking tool with bioload scoring, real-time compatibility checks, water parameter overlap, and a full species library for freshwater, brackish and saltwater.
Open AquaStock →Substrate Calculator
CalculatorFind out exactly how much substrate you need for your tank. Supports sand, gravel, and soil with recommended depths for different setups.
Calculate Substrate →pH & Water Quality Guide
ReferenceInteractive reference for water chemistry. Enter your readings and get tailored advice on adjustments, safe ranges, and treatment products.
Check Parameters →📊 Stock Calculator
Estimate how many fish your tank can safely support.
🪨 Substrate Calculator
Calculate how much substrate you need for your tank.
⚗️ pH & Water Quality Guide
Enter your water readings for personalised advice.
🔍 AI Fish Identifier
Upload a photo and our AI will identify the species.
Log in for unlimited identifications. Guests get 3 per day.
