Alphagrog 15KG Urchins allowing for precise and balanced

allowing for precise and balanced flow to each connected line

and as a soil amendment

as they are naturally gregarious and display more confidently together

Also known as the Green Mandarin

making it harder to happen

Alphagrog 15KG Urchins allowing for precise and balancedAlphagrog is a volcanic rock, proven to be a successful filter media as it ideal for the colonisation of beneficial bacteria. The porous composition of this media allows the bacteria to multiply in abundance over a short period of time. The sharp edges of this natural rock require careful handling, and it is best situated in the last chamber of your filter, as you would not want your Koi rubbing against it! Remember to wear protective gloves whilst