Most of the time you can't. Dwarf Puffers are the only species I know of off the top of my head that can be told apart by eye.
With Dwarf Puffers- Males have "wrinkles" around their eyes and are brighter color then the females.
-Hannah-
GreenSpottedPuffer.net
Chat with our AI personalities
You can tell a female mosquito fish is pregnant when her body appears swollen or rounded, particularly near the belly area. You may also notice that she is more active and voracious than usual, as pregnancy can increase her appetite. Additionally, if you see a small tube-like structure under her belly, this is a sign that she is carrying developing embryos.
Mouth brooders will have an enlarged mouth, most of the time you can see from that, but all fish are different, and remember many fish lay eggs
Puffer fish amplify there mass when frightened. If it is constantly swollen, it may be pregnant. Puffer fish also will have yet tighter skin.
Yes, mosquito fish can eat duckweed as part of their diet. Duckweed can provide a good source of nutrition for mosquito fish, as it contains proteins and carbohydrates that they can digest. Additionally, feeding duckweed to mosquito fish can help control its growth in aquatic environments.
Other small, peaceful fish like guppies, danios, or neon tetras can generally be kept with mosquito fish. Avoid larger or aggressive species that may view the mosquito fish as food or chase them. It's recommended to keep a peaceful community of fish that share similar water parameter requirements.
Most fish do not get pregnant in the same way that mammals do. They lay eggs instead of carrying developing offspring internally. The time it takes for fish eggs to hatch varies depending on the species.
Fish polluted with toxins and heavy metals.
It is not recommended to keep a dead pregnant fish in the tank as it can decompose and release toxins into the water, putting the other fish at risk. It's best to remove the fish promptly and perform a water change to maintain the water quality.