
How To Make a 75 Gallon Terrarium
Terrariums have been seemingly increasing in numbers over recent years. The trend for a terrarium is gradually growing. Due to this, many people have started to eye on terrariums. However, most terrariums that people find are usually small and puny. But considering that you are here, we assume that you are looking for something much bigger. On the other hand, most people who make terrariums usually go for ground terrariums, but here we will be guiding you on how to make an aquatic one instead.
This article will explain or discuss:
- 75 Gallon Aquarium Dimensions
- Designing the 75 gallon terrarium
- 70 gallon aquarium
- 75 gallon reef tank
75 Gallon Aquarium Dimensions
The most important thing about building your terrarium is the dimension of your aquarium. For a 75 gallon aquarium, it will be at a length of 48 inches long and 18 inches wide with a height of 20 inches. These aquariums are usually rectangular in shape and are made of glass.
Be sure to get one of high quality so that you will be able to enjoy looking at your terrarium through the clear glass.
Design
You may want first to design your 75 gallon terrarium before you touch anything else. Having an unmistakable thought of what you are going to put in your terrarium is very important. This is to reduce any unnecessary troubles met upon the way. Some people who do not have an idea of what to put in their terrarium end up with a mess. The soil may be unsuitable for the plants they have, or it just isn’t as efficient as it is supposed to be.
Hence here are some tips that you could follow to ensure that your 75 gallon terrarium comes out perfectly.
Plant Species
Have you thought of what plants to put in your 75 gallon terrarium yet? Not all plants can survive in both saltwater and freshwater. This is very deadly to plants if you were ever to mess this up. We will talk about that further later on. But first, we suggest getting aquatic weeds as they are the most common ones. They are the cheapest and easily obtainable plants. If you feel as if they are too dull, you can always consider going for aquatic mosses. Mosses are commonly used to decorate the bed or stones. They are what makes an aquarium feel like a terrarium.
Having bigger plants such as the Anubias Barteri is a great idea too. Remember that you are making a large 75 gallon terrarium. In order for it to look astonishing, it is necessary to pack the entire terrarium. Of course, there are many other aquatic plants which you can consider; however, those would be left for you.
Water
As mentioned, there are two types of water. Saltwater and Freshwater. Both of these waters should not be confused as they may be harmful to your plants. We suggest sticking to one side in case of any problems occurring.
Lighting

Plants need light sources to go through photosynthesis; that goes for aquatic plants as well. Hence we recommend that you install a light source on the ceiling of your 75 gallon terrarium. This light source can be controlled by you to ensure that your plants get sufficient light.
Adding Fauna
The whole point of making a large terrarium is to have its own ecosystem. However, what the ecosystem does not have faunas? Since your terrarium will be aquatic-based, you can invest in purchasing small fishes or shrimps to make it more lively. If you aren’t afraid of insects, you can do that as well. This is a win-win situation for both your plants and faunas.
The plants will produce oxygen for any living thing in your 75 gallon terrarium; Insects which are present in the terrarium feed on the plants and absorb oxygen as well; the fishes eat the insect which goes near the water; when both fishes and insect excrete, they provide nutrients to the soil for the plants. This would be called a perfect ecosystem.
Note: Maintaining this is somewhat hard; hence we suggest you make it this lively if you have the time and capabilities to.
Decorating
The decoration is one of the most fun parts of the making process. The way you decorate your 75 gallon terrarium will affect the outcome of how it looks and how the living things inside will cope with it. As we all know, every animal needs a home; hence adding large stones and dried branches may be useful for them as they are able to hide underneath it. Materials such as these can be easily found in your nearest aquarium store. If you still can’t find it, feel free to browse through online stores.
With that, all you have to leave is to fill up water until a specific height. The water level will be left for you to decide as each person’s design varies from one another. With that, you have successfully built a 75 Gallon terrarium.
70 Gallon Aquarium
Despite being smaller than the one we’ve discussed, it is generally still the same process. The only difference that you may need to take into consideration is reducing the amount of life there is in your terrarium. Ensure that there are enough requirements for all flora and fauna to sustain in your terrarium. This 70 gallon aquarium can be found in a nearby aquatic store, so you need not worry much about it. Given the chance that it is unavailable, purchase it online.
75 Gallon Reef Tank
Do you know the difference between an aquarium and a reef tank? Well, reef tanks are specifically towards saltwater flora and faunas. You can consider purchasing Halimeda and Shaving bush plants if you were to build a 75 gallon reef tank. Flora species for reef tank terrariums may be less than aquariums; on the other hand, it has a large number of faunas you can choose from. Overall, Reef tanks will be easier to demonstrate the beauty of having a 75 gallon terrarium as the fauna and floras are much brighter in colour.
Conclusion
If followed correctly, there should not be a problem with the 75 gallon terrarium which you are building. Do note that you should only make this if it is within your capabilities. What people have does not equally mean you should have the same.
