Our last shipping day for online orders will be Wednesday 18th December, 2024 by 12:30. Orders placed after that will be dispatched from Wednesday 8th January 2025.
Are both K1 and K1 Micro suitable for biological filtration?
Yes, both K1 and K1 Micro are suitable for biological filtration, K1 is usually preferred in biological filters like you would find on a pond. K1 Micro is ideal for static or moving bed filters on aquariums
