Guides
Practical guides for building and looking after a freshwater tank. Check local wildlife rules where you live.
Cycling your tank
8 min readFishless cycle
A fishless cycle, step by step.
Water chemistry: pH, GH, KH
Coming soonWater chemistry
What your water readings mean, and when to leave them alone.
Choosing a filter
Coming soonFiltration
Sponge, HOB or canister. Start with flow and biological media.
Planted tank basics
Coming soonPlants
Light, CO₂, substrate and hardy starter plants.
Quarantine for new fish
Coming soonQuarantine
A simple routine to keep a sick fish from spreading illness.
Water changes done right
Coming soonMaintenance
How much water to change and how to avoid shocking fish.