How many times should you feed a guppy fish and neon fish?

You should feed guppies and neon tetras twice a day, offering a small amount of food each time that they can consume within 2-3 minutes.

Here are some things to keep in mind:

* Overfeeding is a major issue. It can lead to water quality problems, bloating in the fish, and even death.

* Observe your fish. If they aren't eating all the food within the 2-3 minute timeframe, you're feeding too much.

* Variety is key. Offer a mix of high-quality flake, pellet, and live/frozen foods for a balanced diet.

* Fasting once a week can be beneficial to help maintain good health.

Remember, these are general guidelines. The specific amount of food will depend on the size and activity level of your fish, the size of your tank, and the number of fish you have.