Blog
Guides for healthier water
Straight answers on oxygen, fish kills and lake management — written for fishery owners, not engineers.
Water-quality parameters
Algae blooms and fish kills: the oxygen connection
How algae blooms cause fish kills in lakes — the overnight oxygen swings, the deadly post-crash oxygen crash, and how to manage the risk.
Updated 8 Aug 2026
Monitoring technology
Continuous vs spot-check dissolved oxygen monitoring
Why a handheld meter misses the readings that matter, and how continuous 24/7 oxygen monitoring catches overnight crashes that spot checks never see.
Updated 8 Aug 2026
Fishery management
Do I need an aerator for my lake? A fishery owner's guide
How to tell whether your fishing lake needs aeration, what aerators do, and how to run them efficiently using dissolved oxygen monitoring.
Updated 8 Aug 2026
Fish-kill prevention
How to prevent a fish kill in hot weather
A practical, step-by-step guide to preventing summer fish kills in lakes and fisheries — what to watch, when the danger peaks, and how to act before dawn.
Updated 8 Aug 2026
Fish-kill prevention
Lake turnover: why autumn can kill fish
What lake turnover is, why it can trigger sudden fish kills in autumn (and spring), and how to see it coming and protect your stock.
Updated 8 Aug 2026
Fishery management
Monitoring an off-grid carp lake, from the UK to France
How to monitor dissolved oxygen on a remote carp lake with no mains power or Wi-Fi — whether it's a UK syndicate water or a French carp lake — and keep big fish safe.
Updated 8 Aug 2026
Water-quality parameters
What is a safe dissolved oxygen level for a fishery?
A plain-English guide to safe dissolved oxygen levels for coarse, carp and game fish, with a threshold table and what to do when levels drop.
Updated 8 Aug 2026
Fish-kill prevention
Signs of low oxygen in a fishing lake
How to spot low dissolved oxygen in a lake before it kills fish — the early warning signs, what they mean, and why they often appear too late to act on.
Updated 8 Aug 2026
Water-quality parameters
How water temperature affects dissolved oxygen
Why warm water holds less oxygen, how much less, and what the temperature–oxygen link means for managing a lake or fishery through summer.
Updated 8 Aug 2026
Fishery management
Where to place your lake monitoring kit
A practical guide to siting your sensor station, gateway and aerator on a lake — balancing the early-warning 'canary spot' with enough open sky to keep the solar charged.
Updated 8 Aug 2026
Fish-kill prevention
Why do fish die overnight in lakes — and how to prevent it
Most avoidable fish kills happen overnight in summer when dissolved oxygen crashes. Here's why it happens after dark, and how to catch it in time.
Updated 8 Aug 2026
Protect your stock before the next hot night
Book a 15-minute demo and we’ll show you exactly how Lakelytics would watch your water — or call and talk it through today.