1. Goldfish require a PH level of around 7.5 to live comfortably. Use PH testing strips to ensure that the levels in your aquarium are just right.
2. Pay close attention to your fish's PH needs and augment your aquarium as necessary to accommodate the new fish you are adding to your aquarium.
3. Make sure to keep a log on hand to update any changes in the aquarium. This will help you keep track of changes in your aquarium much more easily. Keep your aquarium log in a place where you wonít forget it.