sera guide - Healthy pond fish

59 Which additional devices (e.g. UV-C clarifiers) and decoration elements do you have in the pond?88 Do you also keep animals other than fish in the pond?55 When did you last add new fish or plants?77 How many plants are there in the pond, and which species?66 Which water conditioners (e.g. sera KOI PROTECT) or treatments are used or were recently used?99 11 Checklist