Smaller tanks have less surface area, especially if your tank is tall and narrow. In that case, think about placing an air stone in those areas. You may notice that some parts of the tank aren’t circulating well. If you have a canister pump and still notice the surface isn’t moving, check if it’s installed properly. If you notice that the water’s surface is still, you have to invest in an air pump. Internal filters are normally weaker and won’t cause proper water circulation. Sometimes the filter you’re using isn’t strong or big enough for your tank. This circulation creates an opportunity for oxygen to be dissolved in the water while it’s being purified.Īs you can see, a filter can be up for the air pump’s job in a normal tank situation, but sometimes, having a single filter just won’t do the trick. It then sends back the pure water through another hose. On the other hand, most aquarium filters can do a pump’s job to some extent because they circulate the water while detoxifying the tank from harmful chemicals.Ī filter draws the aquarium water through a hose to filter media like sponges and removes impurities like debris or algae. They’re installed outside the tank and pump air through a tube. Regular air pumps don’t filter the tank’s water. It can absorb more oxygen from the surface, especially with adequate aeration and surface disruption.Īir pumps can help with this, but so can filters, powerheads, and aerating ornaments. The oxygen in the water decreases as the fish breathe. The rake will absorb the dissolved oxygen in the water and transport it into the bloodstream. Goldfish pump the water through their mouths into their bodies until it reaches an organ called a rake. Water contains an amount of dissolved oxygen. If your fish are coming to the surface to gasp for air or they’re moving their gills more often, your current solution isn’t working, and you might need to invest in an air pump. Since they’re active creatures, goldfish need more oxygen than some other fish varieties. Goldfish don’t need an air pump to thrive as long as they get enough oxygen from the water. Read on to find the answer to this question and more! If you keep goldfish in your tank, you might be wondering whether or not you need an air pump. They need oxygen to reach their full size, and small tanks usually have enough of it. They tend to grow to about two inches and don’t need a lot of space. Goldfish are popular pets because of both their small size and their peaceful behavior.
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