How many fish can I have in a 20 Gallon aquarium? The Primo 110 holds just over 20 imperial gallons and the Primo 70 is just under 20 American gallons. The Juwel Primo series includes a couple different sized tanks, notably the Primo 110 and Primo 70 being 110 and 70 litres respectively. We will be listing ones we recommend, giving a non biassed review on each of them, including pros and cons of each tank. Here we will list some of the most popular current 20 gallon aquariums on the market. Oftentimes, they will be released in a variety of sizes, so every few years there are a bunch of new branded 20 gallon tanks. What are the best 20 gallon fish tanks?Įvery few years aquarium companies will release a new series of tanks to compete against each other. If the corners look very bare, then the tank may need to be re-siliconed you should test its water holding capacity before buying it. The silicone on a 20 gallon should be reasonably thick as it needs to hold a lot of weight. Slim tanks can also be difficult to perform maintenance on.Īs with all second hand tanks, you will also want to look for any cracks or areas where the silicone is very lacking or damaged. Without much depth, these tanks should be avoided as the dimensions don’t provide good swimming space for most fish. By this, we mean that the sizes width, depth and height are all reasonably balanced.Ģ0 gallon tanks are generally very good as far as dimensions go, but some tanks are very tall and very slim. When choosing a 20 gallon tank, you want to look for an aquarium that is well dimensioned. What to look for in a 20 gallon fish tank They are however, still not large enough to house a goldfish for its whole life, although they can house a few young goldies for a time.Ģ0 gallons are best used to house smaller tropical or coldwater fish like guppies, tetras and danios, but are an excellent starter tank all in all. They are easy to maintain as the large amount of water means problems will happen at a much slower rate, meaning you have more time to react to things like poor water quality.Ģ0 gallons gives enough space for a comfortable community tank something which smaller tanks cannot do so easily.Ģ0 gallon tanks are also typically longer than most aquarium sizes, which means they will be much cheaper than a tall tank, as the glass does not need to be as thick. They are reasonably sized, while not taking up much room,and hold a good amount of water, which means you can house a larger variety of fish, giving you more choice in what you want to keep. Should I get a 20 gallon fish tank?Ģ0 gallon tanks are an excellent sized aquarium. You may also want some tank decor, perhaps a sand or gravel of your choice to add to the bottom, some plants and perhaps some rocks or driftwood. If you are going for a tropical tank, then you will also need a 100 watt glass aquarium heater, so you can keep it at the ideal temperature. You are looking for something that is able to filter over 100 litres most filters will say on the box what they can do and often come in different sizes.ĭepending on the type of tank you want to go for, you will also need an LED aquarium light to turn on during the day, so you can see your fish.Īdding a light isnt fully necessary however, unless you have live plants, in which case they will need light to feed and grow from. Here, we will go over all the equipment you will need on a 20 gallon to run it successfully for the fish you want to keep.įor a 20 gallon fish tank, you will need a filter that is sufficient enough for the tank. Some however, don’t come with everything you need and may be missing some parts. Most aquariums these days are sold as kits, containing most of the things you need. What do I need for a 20 gallon fish tank? In general, a 20 gallon tank is an excellent starter tank – we much prefer them over 10 gallons, as they give for a lot more variety and are more forgiving of mistakes and neglect as they can hold more water.Ī 20 gallon tank gives you more variety in the fish you can choose to keep, as the extra space is much less limiting than say a 10 gallon, which only allows you to keep a few very small fish.Ģ0 gallons are easy to manage and are a great aquarium size to start off with. It will be able to house very young goldfish of up to 3” for maybe a year or so, but they will outgrow it and it’ll need an upgrade eventually. 10.1 Interpet Heater Is a 20 gallon fish tank a good tank size?įor goldfish, a 20 gallon tank is alright for a time.
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