A 29 gallon tank is the minimum for one fancy goldfish so as long as you keep up on 25–50% water changes weekly, feed, and have a strong filter it properly it should live out its full cylce of at least 2–5+ years.
Can 2 goldfish live in a 29 gallon tank?
29 gallons is really not big enough for 2 adult goldfish. They will survive, but probably won't thrive. Although people keep them in aquariums, they are best as pond fish.15 Apr 2017
How many fish can I put in a 29 gallon tank?
In most cases, you can keep up to two large-bodied fish in a 29 gallon tank without any problems. You will have to keep and eye on water conditions since 29 gallons is still not a lot of water to work with.
What big fish can go in a 30 gallon tank?
Neon Tetras, Black Neon Tetras and Lemon Tetras are just some of the desirable species which you can keep in a 30 gallon aquarium. They make colorful additions to planted aquariums. Another small species loved by aquarists are Rasboras. They are a peaceful community fish that are very common in tanks under 30 gallons.24 May 2021