Reviving your water feature after winter with envii
Water features don’t look their best at this time of year, so it’s essential to spring clean your pond. A winter’s worth of fallen leaves, sludge, murky water and new algae need to be treated asap.
You don’t need to be a pond expert to solve these problems. Envii has a range of pond care solutions designed to make spring preparation easy, effective and low maintenance. The targeted treatments and expert formulation work with your pond, not against it. Read more about building ponds and how to create a wildlife pond.

Step-by-step: How to spring clean your pond
- A simple tidy-up: Remove fallen leaves, dead plant material and visible debris with a net. Trim back marginal plants and divide overgrown varieties.
- Tackle sludge build-up: During winter, organic waste settles at the bottom of the pond and begins to decompose. This sludge affects water clarity and oxygen levels. Envii Sludge Klear (£13.95) contains beneficial bacteria that break down sludge naturally, reducing build-up and improving overall water quality without disturbing fish or wildlife.
- Clear green or murky water: As temperatures rise, algae thrive, and the water turns green. Envii Pond Klear (£12.95) clears pond water and promotes a healthier aquatic environment. Using beneficial bacteria, Pond Klear targets and breaks down organic matter that causes cloudiness, algae growth and poor water quality. It reduces excess nutrients, helping to prevent algae blooms. Safe for fish, wildlife and pets. With regular use, Pond Klear helps prevent green water from returning and supports improved oxygen levels.
- Remove blanket weed and string algae: For more persistent algae, try Envii Algae Klear Xtra (£20.95) or for lesser amounts, Blanketweed Klear. This targeted pond algae treatment works to kill submerged blanket weed and string algae within two weeks. Effective at any temperature, it also helps prevent regrowth thanks to a UV light filter. Algae Klear Xtra works alongside Pond Klear to restore good water quality.
- Maintenance: Little and often is the key to consistent, manageable care. By addressing sludge, water clarity and algae early, you set your pond up for a clearer, healthier summer.
For more information or to shop the full range of pond products, visit www.envii.co.uk.