sera guide - Healthy aquarium fish

c) Which food additives (e.g. vitamin preparations) do you use? When and how do you clean the filter?1111 a) Which food types? b) How often do you feed? Are there remainders? Feeding1122 Measuring date pH Temperature GH KH NH4/NH3 NO2 NO3 PO4 Cu Fe Which water parameters do you measure?1133 Do also check the parameters of the tap water you use for comparison. Sometimes the tap water con- tains undesirable substances or provides unsuitable water parameters. Further advisable measuring parameters: Conductiv- ity, chlorine, oxygen, carbon dioxide, plus calcium and magnesium in saltwater. Please fill in as far as available. How often do you carry out water changes? How much water do you change while doing so?1100 11 Checklist 66