Aquatics Writer
James Whitcombe, Aquatic Science MSc
Freshwater and marine aquarist with fifteen years of fishroom experience, focused on water chemistry, cycling and stocking decisions that hold up over the long term.
AquariumsWater chemistryFish healthAquascaping
Written by James Whitcombe
Aquatics
Aquarium Water Chemistry and the Nitrogen Cycle
Most fish illness is a water quality problem. Understanding cycling is the core skill of fishkeeping.
James Whitcombe · 9 min read · Updated 2026-07-14
Buying guidesChoosing Your First Aquarium Setup
What to buy, what to skip, and why the biggest tank you can fit is usually the easiest to keep.
James Whitcombe · 8 min read · Updated 2026-08-09