1. You should feed your fish a variety of food and not just flake foods. Mix it up with fresher foods from their regular diet. Giving them more a varied diet will increase the general health of your fish.
2. Goldfish can live incredibly long periods of up to 25 years. You should plan accordingly when you purchase a goldfish.
3. Wrasses are very lively fish, and love to jump. You should always have a well secured lid when keeping wrasses in your aquarium.