Guppy

the gravid spot will be jet black and she will look a bit like a square and the hole wher the babys come out will be grey or more notisable

Just normal water that has had all of the necessary precautions taken to upon.

Tail

Guppies do not have a streamlined body; instead, they have a more rounded and compact shape. Their bodies are generally small and colorful, which helps them in evading predators. While streamlined bodies are typical of fish that need to swim rapidly through water, guppies rely on their agility and quick movements rather than speed.

I don't go for ranges of survival/tolerance. I do however know the recommended temperature range for Guppies and that is between 65F and 78F. Much variation over and under those temperatures will have a deleterious effect on the health and longevity of the fish.

Robert John Lechmere Guppy discovered this tiny fish in Trinidad in 1866.

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.

The goldfish should never be in the same tank as guppies. Goldfish are coldwater fish and need to be kept below 70F. Guppies are tropical fish and need to be kept above 70F.

Snails are known to eat small prey if they can get to them, but fry will be able to outswim them before being killed.

Yes - there is virtually no limit to how many female guppies can live together.

I do not know what you mean by a "cleaner fish" If you mean the 'Cleaner Wrasse' then the answer is no because guppies are fresh water fish and cleaner wrasse are salt water fish. If on the other hand you mean catfish rather than cleaner fish then it is possible but that depends on what species of catfish you mean.

A guppy simply has evolved and developed basic instincts for survival and procreation as do all fish. It is not capable of reasoning like a human so it does not have an "attitude" as such.

watch for stress; find out if they are "schooling" fish; possibly separate them, or get a larger tank

yes, a guppy gives birth to live young. But I wouldn't suggest trying it.

Yes they do

Yes all full grown females are bigger then the males, males only have bigger tails.Also you can tell the difference between the males and females by looking at your guppies and the ones that have the most colors are the males and the females are plain. Well not all females are plain they have some color but not a lot!

oh yes! i have 3 happy guppies living in a jar right now and they have been there for 5 months!

You may awnt to put her in a separate tank or a breeder box. Make sure the tank is a good temperature and clean. Of course, give her food. Take out of wherever she is and put her with the other guppies as soon as the babies are born. The other guppies will eat the babies as will the mom.

You should look to getting a heater to properly treat the fish, otherwise it may not get better

If you are worried about a guppy aborting you must be doing something wrong. Guppies are so very easy to breed. Just leave her alone feed her regularly and keep her water in good conditions (regular water changes and temp around 75F) and she will provide you with healthy young fry.

not necessarily but it is a good idea to turn off the light at night to prevent algae growth.

The Gravid female will have the dark "gravid spot" in front of her vent. I can however assure you that if there has been a male in the same tank with a female guppy for any reasonable length of time she will be gravid.

So? What is your problem?

The female guppy will be very large and will have a gravid spot near her anus. But when she is ready to give birth she will be very still and huddling near the heater in your tank.