How To Take Care Of A Pregnant Guppy Fish. If you return the fish to the tank try turning the heat up slightly in the aquarium to help the maturation process of the fry and then watch for signs she is getting ready to give birth. If she becomes over-stressed it can result in a spontaneous miscarriage.
When guppy is pregnant it slows downs its routine activities. Guppies are capable of growing independently without any parental care. You should ideally separate or isolate the female guppy from other fish a few days after you notice they are pregnant.
During pregnancy cold water will slow down the development of the fry therefore keep the tank warm to keep the female from being pregnant for too long.
You will see it swim slowly stay at one place for a long period try to stay near the warm water reside in the corner of the fish tank hide behind the plant etc. Using a breeding box to safeguard your pregnant mother guppy is a great way to ensure the wellbeing of the mother and her fry. To give your guppy the best change of having a successful pregnancy and birth you should separate the female guppy from other fish. The guppies develop within eggs and these eggs are nourished and incubated from within the mothers.