Guppies are tropical fish and they like warmer water. So, do I need a heater for my guppy fish tank? The short answer is, YES! You need to heat the water for your guppies, unless you live in a tropical climate, where the temperature does not drop under 68 °F (20 °C).Click to see full answer. Furthermore, do guppies need a filter?A filter is not compulsory as guppies don’t produce as much waste as other fish such as goldfish do. Nevertheless, many guppy owners swear by filters, saying that they help to maintain water quality and keep the guppies healthy. At Swell, we do recommend keeping a small filter in the tank.Similarly, what temp can guppies live in? Optimal Temps Keep guppies’ water temperatures between 74 and 82 degrees Fahrenheit. These optimal water temperatures are similar to those of most tank fish. Aquarium residents generally succeed in temperatures that are in the range of 70 to 80 degrees. can guppies survive without a filter? While technically it is possible for guppies to survive without a filter, it’s best if you have a filter system installed in your aquarium.How can I keep my tank warm without a heater? How To Keep Betta Water Warm Without A Heater Use The Hood/Canopy. One of the easiest ways to ensure that your Betta water is and stays warm is to use the hood or canopy for the tank. Use A Stronger Light. Keep It In A Warm Area. Use A Filter That Is Not Energy Efficient. A Smaller Tank.

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