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Not enough oxygen in the water ! Fish need their water changing regularly - as their waste builds up large amounts of nitrogen which combines with the oxygen and hydrogen molecules in water to produce ammonia.

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Q: Why do guppies sometimes stick they 're mouths out of the water?
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Should guppies swim at the top of the aquarium?

Yes, Guppies are obviously surface fish. Just look at the shape and angle of their mouths. You can see that they are designed specially for skimming under the surface of the water.


Can you give guppies biscuits?

No it might poison the water and infect all the fish in it. You should stick to fish food and maybe sometimes give them a cube of frozen blood worm, as a treat, they love that stuff.


What fish can live in both warm and cold water?

goldfish, sometimes minnows and even sometimes guppies and bettas but it depends on the range of temperature


How do walking sticks drink?

they dont.Another AnswerActually, they do. Stick insects need to drink as well as eat, and will drink droplets of water from leaves. Stick insects use their mouths to draw up water.


Can guppies survive in distilled water?

Guppies can survive in distilled water. Distilled water is even better because it has minerals to help the guppies stay healthier. But some of the minerals can harm the guppies and cause them to be unhealthy.


What do guppies do to stay alive in the ocean?

Guppies are fresh water fish who will die in salt water.


Can guppies be with brisslenoses?

Guppies are compatible with Bristlenose catfish, the bristlenose being one of a few catfish that can live with guppies because of the guppies' water.


Does algae kill guppies in a week?

Algae is a water purifier and will not kill Guppies at all.


What is the temperature of a guppy fish?

guppies can thrive in water around 73 degrees- I keep my guppies in water ranging from 74 to 82 degrees.-


Can you keep a fresh water shrimp with guppies?

The guppies may well rip the legs off the shrimp.


What kind of water do you put guppies in?

Tropical fresh water. (Not salt water).


Does hard water with a concentration of iron and magnesium affect the ability of guppies to breed?

Having too much iron (Fe) and/or magnesium (Mg) in your water will be detrimental to any fish including Guppies (Lebistes reticulatus). Guppies do not like very hard water either.