pregnant guppy question
 

ok I have a pregnant guppy that is getting BIG and want to know when should I put her in the breeder box ??? I have included photos of her. and my other females that are not as far along in their pregnancy should I put them in my community tank and wait till they get as big as her or leave them in my 10g tank. This is where I plan on keeping fry. I have mondo grass, dwarf hair grass, java moss, and a plastic treelike plant in there for the fry to hide in. :-?

oh I forgot to add that she is getting darker colored than the other females in the tank and swimming from top to bottom of the tank really fast

I breed swordtail guppies and I never use a breeding box. I just have a moderately planted tank. I always keep my fish well fed and I never have problems losing any fry. So yeah, Put her in there whenever you want, but it's not the way I would do it. I feel like the mother is always more comfortable hanging out at the bottom underneath some plants for cover. Just my opinion of course.