ive researched on gravid spots ALOT...haha...I can't tell by looking at the gravid spot i was wondering if someone more experienced than me with breeding guppies could tell
You can tell when they're very near (within a day or so) because her belly will 'square off'; get more cube shaped, especially at the front, where there will be almost like 'corners' to her tummy.
yea ive kind of given up on gravid spots...haha can you tell by the basic shape of a guppy, besides being squared off, to kind of estimate how long they have?
Not really, no; apart from the fatter they are, the nearer they are, obviously! Squaring off is the best sign; once you've seen one, you'll recognise it next time