It puts on weight teally quick and stays in one cleared area of the aqurium most of the time Parrot fish do not and can not get pregnant. They are egg layers and their eggs are fertilised outside the body.
Danios are egg layers and can not get pregnant.
You wouldn't ever be able to tell this, because carp fish do not get pregnant. Pregnancy implies carrying the young internally, which carp do not do.
Pregnant fish may appear rounder or have a swollen belly. You can tell if a fish is expecting offspring by observing its enlarged abdomen and possibly seeing small, developing eggs inside.
Goldfish of any type are all egg laying fish which means that they do not get pregnant
With a guppy you need to look at the gravid spot. This is a dark spot in the fish's belly. A large gravid spot indicates the fish is likely to be pregnant. You can tell how pregnant the fish is by how large the spot is. Sorry I have no experience with other species.
To determine if a fish is pregnant, look for signs such as a swollen abdomen, changes in behavior, and a darker gravid spot near the anal vent. Pregnant fish may also exhibit increased appetite and aggression.
Orandas, or any other type of goldfish are egg laying fish, so they do not get pregnant
Black moors are a variety of goldfish which are egg layers so they can't get pregnant.
To determine if your fish is pregnant, look for signs such as a swollen abdomen, changes in behavior like increased hiding or aggression, and a dark spot near the fish's anal vent. Additionally, you may notice the fish's scales appearing raised or separated. If you observe these signs, it is likely that your fish is pregnant.
A graviid spot is a dark grey spot at the back of the stomach. It is a sign to tell you that your fish is pregnant
The GloFish will have a bloated look and will be fat. If you compare it with the other GloFish , you can usually tell the difference. I'm not sure right now, as my GloFish is also pregnant.
A pregnant fish is called a TWIT