sera guide - Healthy aquarium fish

Which additional devices (e.g. membrane pump, UV-C clarifier) and decoration elements (e.g. bottom gravel) do you have in the tank?88 Do you also keep animals other than fish in the tank?55 When did you last add new fish or plants?77 How many plants are there in the aquarium, and which species?66 Which water conditioners (e.g. sera aquatan) or treatments are used or were recently used?99 11 Checklist 65