How Big Do German Blue Rams Get? | Aquascape Addiction

How Big Do German Blue Rams Get?

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We answer the common question of how big do German Blue Rams get? along with some important information on how to ensure healthy growth to make sure your fish stays healthy and happy.

How Big Do German Blue Rams Get?

German blue rams are very popular aquarium fish that don’t require too much maintenance. They are tropical fish with fantastic electric blue coloring, plus so much more. Some people have been asking us, how big do German blue rams get? We are going to do our best to answer that question right now.

Let’s first directly answer the question then look at some other important points to maintain healthy growth;

So, How Big Do Blue Rams Get?

Generally speaking, if conditions are good, this colorful little fish will reach around 7 centimeters or 2.7 inches in length. As you can see, it is a smaller fish, making it ideal for small and medium sized aquariums.

One thing that should be noted is that the male German blue ram is a little bigger than the female. Females will usually grow to around 2 inches in length. Just like with all other fish out there, the conditions you keep it in can affect its growth and final size as an adult.

How To Ensure Healthy German Blue Ram Growth

Like we said, depending on the conditions you keep your German blue ram in, it can grow bigger or smaller. Here are a few tips you can follow to ensure that your German blue ram grows as big as possible.

  • Animals often grow to the size which their habitat allows for. A fish tank that is way too small will not allow these fish to grow to full size. Ideally, if you want your German blue ram to grow to full size, a single one should not be kept in aquariums smaller than 20 gallons, with each extra fish requiring an extra 20 gallons of tank space.

  • Make sure that the water is clean. Clean water leads to healthy and fast growth. This means that you should have a great 3 stage filter to engage in mechanical, biological, and chemical filtration (we have reviewed our top 11 over at this article). You should also pay attention to the health of your fish. Bacterial, parasitic, and viral infections, or contamination caused by dirty water will stunt the growth of your German blue ram. You need to engage in regular water changes and make sure the water is crystal clear.

  • In terms of the water temperature, to allow for a good metabolic rate, calorie burning, and growth, German blue rams require the water to be between 78 and 85 degrees. As well, in terms of the pH level, these guys like the water to be fairly acidic, with a pH level of 6.0 being ideal. They also like their water to be moderately hard.

  • Finally, to make your German blue ram grow big and strong, you need to feed it the right food. These little guys are omnivores and eat both plant matter and animal based protein. A well balanced and mixed diet of flakes, fresh food, freeze dried foods, and some veggies is ideal. They need a good mix of vitamins, minerals, and nutrients.


German blue rams are not the biggest fish and therefore don’t require too much space. Follow the tips outlined above to help them grow to full size and to be as healthy as possible.