The Lifespan of a Tropical Fish

The majority of typical tropical fish lifespans are on average 3 to 5 years. but you know that it all depends on how they treat them. Giving them proper care and the environment is very important.

Goldfish are among the fish that live the longest potentially up to 20 years.

If you want a longer lifespan for tropical fish it all depends upon how you take care of them. Don't overfeed them in general, most fish do quite well on one-two feeding per day. You have to change the water in a tropical fish tank every 1 to 2 weeks.

Ammonia and Nitrite are just two of many common problems, that you might come across while Caring for an aquarium and both can harm your fish.

Temperature is just one factor we need to consider when caring for our aquatic pets. On the other hand, water quality, a healthy diet, and too high or too low temperature of tropical fish could cause illness.

Tropical fish, for example, do best between 75 and 80 F, goldfish and other cold-water species prefer temp below 70 F.

The lifespan of Tropical fish- 10-12 years.
Size of Tropical fish- 5 cm.
Diet- Fish pellets and frozen fish food.

Care and Requirements to Increase the Lifespan of your Fish

  • Aquariums need specific requirements with testing kits and tools from your local pet barn.
  • The ideal pH level is between 5.5 and 7.5
  • Nitrite level should be between 0 and 0.5 ppm.
  • Tropical fish need a variety of pellets and frozen foods to stay healthy.

Different species of tropical fish prefer to eat in different ways, so you'll need to determine how your fish like to eat before you start feeding them.

A common cause of death in tropical fish is overeating. When determining how much food to feed your tropical fish, a good rule of thumb to follow is to give your fish no more than what they can consume in less than 5 minutes. This goes for both indoor and outdoor fish.

When setting up your tropical fish aquarium, the first thing is to consider the size of your tank and choose the size according to the amount of fish you're planning to keep. It will help you and give good care and environment to them.

When choosing a position for your aquarium, avoid heaters and full sun exposure, and fill your tank first with a suitable substrate, such as gravel. Also include different ornaments for your fish to hide in and swim around because fish love to swim around rocks and plants.


A water filter and thermometer will ensure the best water quality. Take some water to your local pet barn to be tested.

Clean the tank's walls with a magnetic glass cleaner, easily available on Amazon.

Tropical fish are vulnerable to various diseases. If you notice anything peculiar, such as food refusal, irritated scales, mucus, or cloudy eyes, visit your local Greencross vets. 

Providing clean water and a healthy diet, in addition to removing potential collisions are the best treatment for a traumatic cloudy eye. If you see no change then go to Greencross vets.