I have a trio of albino red lace snakeskin delta guppies. I got them in last February and they've been well for 3 weeks.
The females don't seem to be getting bigger. I've been feeding them twice a day (once in the morning, one in the evening) and keeping up with water changes. No signs of stress at all.
The male is really really really really sexual. There hasn't been a single time I've tried watching the tank without seeing him try to tie the shoelace, if you know what I mean... Nevertheless, the females aren't getting fatter. They were very plump when I got them, like full-stomach-of-munchies plump. They still are like that.
Do the females look like they're able to ice the cupcake, if you're picking up what I'm putting down?