EA PURE+ Filter Start Gel

EA PURE+ Filter Start Gel

Biological pond treatment for filter support, sludge reduction and water balance

EA PURE+ Filter Start Gel is a highly concentrated live bacteria culture designed specifically for new pond filters. The gel formulation allows beneficial bacteria to stick directly to filter media, ensuring rapid colonisation and faster filter maturation. Once applied, the bacteria begin breaking down ammonia and nitrite immediately, helping to establish a stable biological filter and reduce stress on fish during new pond setup or filter changes.

It is ideal for use in all types of pond filtration systems, especially bead filters and moving bed systems. Fast Filter Maturation System PURE+ Filter Start Gel is designed to quickly mature new biological filters.

Biological treatments such as EA PURE+ Filter Start Gel work best when the pond gives the bacteria the right conditions to establish. Use in chlorine-free water, maintain good oxygen levels and avoid dosing at the same time as strong chemical treatments unless the manufacturer says it is safe. They are especially useful after filter cleaning, new pond start-ups, medication courses, heavy feeding or seasonal waste build-up, where the biological system needs extra support.

Evolution Aqua PURE products are designed around live beneficial bacteria, filter support and sludge reduction. PURE Pond Bombs and Sludge Bombs are often used together for clarity and maintenance support, with many products treating up to around 20,000 litres per unit.

Biological support guidance

Use EA PURE+ Filter Start Gel when the pond or filter needs biological support, such as after cleaning, new filter installation, medication, heavy feeding or seasonal waste build-up. Do not expect bacterial treatments to instantly remove years of sludge; they work by supporting natural breakdown over time, especially when oxygen levels and water temperature are suitable.

Key benefits

• Adds biological support for the pond or filter system
• Useful after new filter set-ups, deep cleans or medication courses
• Helps support ammonia and nitrite control as the filter matures
• Can assist with organic waste and sludge reduction depending on the formula
• Works best in well oxygenated, chlorine-free water
• A practical maintenance product for busy koi ponds and heavily fed systems

Technical information

• Brand: Evolution Aqua
• Treatment type: Beneficial bacteria and sludge control
• Product form: Gel
• Target issue: ammonia and nitrite support, filter maturity, organic waste, Sludge
• Best use: Spring / Summer / Autumn
• Size: 1 Litre, 2.5 Litre
• Dosage / capacity guidance: Treatment capacity: 10,000 litres
• Important note: Use in chlorine-free, well oxygenated water for best biological activity

How to use safely

The product label should always take priority over general guidance. The points below are included to help customers use EA PURE+ Filter Start Gel in a more careful and informed way.

• Use only in dechlorinated water; chlorine can reduce bacterial activity.
• Avoid dosing live bacteria at the same time as strong chemical medicines unless the label allows it.
• Maintain strong aeration so bacteria and filter media have enough oxygen.
• Allow time for biological products to work; sludge and waste will not disappear instantly.
• Reapply after medication, deep cleaning or large water changes where the label recommends it.
• Store the product as instructed and do not use if it has been damaged or contaminated.

Helpful related products and advice

Use these links to compare similar products in the same range or choose supporting testing, purifier or maintenance products where relevant.

• EA Pond Bomb Live Bacteria Bundle Packs
• EA Pure Pond Live Bacteria Balls
• Evolution Aqua Detox Dechlorinator 12 Inch
• Evolution Aqua Detox Dechlorinator 30 Inch
• Evolution Aqua Pure Pond Bomb
• Browse pond treatments
• Evolution Aqua Pure Sludge Bomb
• ultimate guide to koi health
• ammonia and nitrite management guide