12/05/2026
The HydroLibrary is a free, searchable reference for anyone who spends time near water.
What's in it:
→ Over a thousand UK species, with photos, conservation status, and what you need to know
→ Water quality guides. What murky water, oil sheens, sewage fungus and algal blooms actually mean
→ Every UK freshwater authority with current hotline numbers
→ Plain-English explainers of SSSI, BNG, A06, the Wildlife and Countryside Act, and more
→ 22 languages. No login. Free forever.
Share it with anyone who walks, fishes, paddles, swims, or just likes being near water.
Knowing what you're looking at makes every walk better. And every record matters.
www.hydroscape-group.co.uk/hydrolibrary.html
1,004 species (UK-focused library with broad European overlap), 18 water quality guides, 22 habitat projects, 5 deterrent methods, and 22 authority profiles. Free, 22 languages.