ok so..here is whats going on now. The baby guppy fry i was talking about, is alive! or it maybe another fry from another female..
yes, my tank is planted with some plants. the baby is in a hatchery right now.
last night i observed that the fishes were swimming really slow.(2 females and 2 males) and in the afternoon, one of the males died. i have no clue. so i did 30% water change, added conditioner etc, and the fishes seem to be find. any ideas what caused this. can it be stress? my tank is a 28-29 hex.