All you need to know about buying and keeping pond fish 

Summer is an ideal season for buying fish for your garden water feature. Here's your guide to choosing and caring for them

New ponds need two-three weeks for the biology to mature and settle. Don’t be in a rush to stock the pond. 

Pond filters have a media that helps the ecology and pH balance of the water. This can benefit from both time and the addition of commercial bacteria (bought as a gel).