What to do if your guppy is close giving birth?

I would suggest moving your pregnant guppy to a separate breeding tank. I would not recommend breeding boxes or any small compartments, because those are too small for your guppy and will stress it out. Instead, move it to a separate five to eight gallon tank where it won't be harassed by any other fish and will be able to have its babies peacefully. In this separate tank, do not place any gravel on the bottom. Do not put in any plastic decorations, rocks, castles, ships, etc. The only thing that should be in this tank is, of course, water, and floating plants at the top. Floating plants should ideally cover seventy-five percent of the surface, as the first instinct of the newborn guppy fry will be to race to the top of the tank. The mother will eat the guppy babies if there is no place for them to hide, so make sure to provide plenty of floating plants.