Chances are you have gone to a lot of work for setting up your guppy tank and your breeding atmosphere to produce a good selection of guppy fry. The work does not stop with the birth of the baby’s however, as now emphasis has to be put on protecting these fry from the potential dangers that they face from the moment of birth. It is not unusual for the guppy parents to devour the fry as soon as they are born. It is not always possible for you to be there at the moment of delivery to rescue them so you have to put the proper safety measures in place, and you can do this with a guppy fry refuge that is set up properly. There are a couple of ways that you can prevent the loss of fry because of cannibalism.
Floating breeder tank:
You may want to try a floating breeder tank. This is a tank that is comprised of clear plastic and will float in the water. A divider is placed between the top part of the tank and the lower part of the tank and contains tiny holes. When the female guppy gives birth to the fry the babies are able to fall to the bottom of the tank which means that the mother is no longer able to to get at them. While this will help to prevent a great amount of loss, there will still be some fry that will swim to the top of the tank and there isn’t much that you can do to prevent this. Ideally you want to remove the mother from the breeder tank as quickly as possible once birth has been given. The better approach is to have a set up where you can remove the mother quickly and easily rather than having to remove the fry. If it comes down to it that you must remove the fry from the tank that they were given birth in, then you will need a small fishnet to be able to do this quickly.
You can also provide some additional coverage for your fry by the use of thick plants and these can be either real or artificial. Placing them at the bottom of the tank well allow the majority of the fry to find them and utilize them as a hiding place. This should give you enough time to be able to remove the adult from the tank so that she poses no further danger to them.
While you can put forth every effort possible in to keeping your fry alive it is not unusual to experience the loss of at least a few. Fortunately the adult should give a good amount of fry through her delivery and your loss will not be too consequential. It is not uncommon for novices that have experienced the first delivery of fry to lose a great deal of the first batch because of their inexperience. Fortunately one can learn from their mistakes and move forward into the production of future guppy births that will be successful.