How Long Do Dalmatian Mollies Live? | Aquascape Addiction

How Long Do Dalmatian Mollies Live?

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We answer the common question of how long do Dalmatian Mollies live? along with some helpful information on how you can extend the life expectancy of your Molly fish.

How Long Do Dalmatian Mollies Live?

Dalmatian mollies are one of many different types of the popular Molly fish, a freshwater and brackish water fish that has a really cool pattern. There is always a lot of questions around their lifespan so we decided to dedicate a post addressing the subject along with some other helpful points to keep your Mollies healthy.

Today we are going to talk about how long Dalmatian mollies live and what you can do to extend their lifespan.

So, How Long Do Dalmatian Mollies Live?

Generally speaking, Dalmatian mollies live for anywhere between 3 and 5 years. In optimal conditions they can even reach 6 years of age, but that is if you are lucky and take superb care of your Dalmation molly.

How To Extend The Life Of Your Dalmatian Molly

There are some things that you can do in order to ensure that your Dalmatian molly lives for as long as possible. Let’s go through some quick tips on keeping your Dalmatian molly in prime condition so it reaches old age.

  • Mollies in general are pretty messy, so you need to make sure that you have a really good filter. Their waste creates a lot of ammonia, nitrites, and nitrates, plus other toxins too. They also tend to leave food at the bottom of the tank. A great filter that gets rid of solid debris, plus has bacterial filtration for ammonia and other toxins is crucial. The better your filter the longer Dalmatian mollies will live for.

  • Dalmatian mollies are technically brackish water fish. So, while they can survive in freshwater conditions, they do best if you add 1 teaspoon of aquarium salt per gallon of water in your aquarium. This will go a really long way in keeping your Dalmatian molly alive for as long as possible.

  • The Dalmatian molly is a tropical fish, which means that it needs warm water to survive. You will probably need to get a heater (more on those here) unless you live somewhere that will allow the tank water to be at least 78 degrees on a consistent basis. Anywhere from 78 to 82 degrees Fahrenheit will ensure that your Dalmatian molly is happy and healthy.

  • Another thing that you can do to ensure a long and healthy life for your Dalmatian molly is to feed them high quality food. High quality tropical fish flakes or pellets will do just fine, but some occasional fresh or freeze dried foods (daphnia, insects, insect larvae, brine shrimp) are highly recommended for a protein, mineral, and vitamin boost.

  • Remember to change at least 1/3 of the aquarium water per week in order to ensure optimal water quality.

If you need any information on breeding Dalmatian Mollies then this article will help you out. We have also covered how big they grow to over at this article.


As long as you follow the tips outline above, your Dalmatian molly will live to be a full 5 years old without problem (excluding disease or extenuating circumstances).