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Yes. I can't find anything wrong with using a microwave to slightly heat up cold water for fish, esp. tropical (warm-water) fish like Bettas. Just make sure to check the temperature with a thermometer and stick to the ideal 70-80-degree range. I'm less sure about heating "treated" water in a microwave (which can contain many varieties of conditioners, medications, etc.), but at the very least treat the water many hours in advance.

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14y ago
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13y ago

By getting a fish tank heater.

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Q: Can you heat up bottled water in the microwave to put in your betta's tank?
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Related questions

Why water gets hot in a microwave?

The microwave rays heat it.


Does microwave gives out heat?

It would be more accurate to say that microwaves can be converted to heat. A microwave oven is designed speicifically to heat water, or anything that contains water.


What is the use of microwave radiation?

At microwave frequency, water molocules resonate, creating heat.


How can one safely microwave a hot water bottle?

The best way to safely microwave a hot water bottle is to heat the water in a separate microwave safe container in the microwave and then put the microwaved, hot water into the water bottle.


What is a way to add heat to liquid water?

microwave it


What part of food does a microwave heat up?

Micro waves heat by vibrating the conductive molecules in items. Pure water (which has no impurities) does Not boil in a microwave oven. It does get extremely hot! Be care and use the recommended time for that your microwave states for water.


Why potatoes keep heat?

Water and density, they will cook from the inside out if you microwave them.


Why is heat and sunlight bad for bottled water?

because it makes the water taste bad and it is a haven for germs and bacteria to grow


Which property of food is necessary in microwave ovens?

Microwave ovens primarily heat water (they can heat metal as well, although that is not their purpose), therefore food must contain some moisture in order to be heated in a microwave oven. Dried food will not heat well.


can i store things under this?

Absolutely, the bottom of the microwave is heat and water resistant.


How does cooking happen in a microwave?

When food is placed inside the microwave oven, the microwave released will 'agitate' the water molecules in the food, which causes heat to be produced, which then cooks the food.


Which is better to keep you warm a hot brick wrapped in a towel or hot bottle of water wrapped in a towel?

I think a hot bottle of water cause how are you supposed to heat up a brick.not a microwave cause a microwave use water to heat things up a brick does NOT have water in it