

Viresco Filter-Start 25g
From 2nd July 2025.
Free delivery on all orders when you spend £35 or over

Frequently bought together
Product Description
Viresco Filter-Start
We also sell Viresco Filter-Start for the introduction of healthy bacteria into new or existing filters. Contains microbes to initiate the breakdown of ammonia to nitrite and then nitrate in pond filters. 25g treats ponds of approx. 9,000 litres (2,000 gallons) of pondwater.
All Viresco products are:
• Non-chemical – totally biological
• Easy to use with a long shelf life
• Long lasting – one application lasts many months
• Harmless to fish, plants and wildlife, even if overdosed
• Full instructions with every pack!
Delivery & Returns
Looking for a hassle-free way to get your gardening essentials? Look no further than Mr Fothergill's! We know how important your garden is to you, and want you to be able to stock up on everything you need.
All our delivery charges will automatically appear in your shopping basket.
- Orders for seed only will incur a £2.45 delivery charge
- Orders for non-seed items will incur a £4.95 delivery charge
- A combined order (e.g. seeds and plants) will incur a £7.35 delivery charge.
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