i purchased a platy a couple of days ago, thinking it was big and looked cool. It was pregnant. The tank was not prepared for them, after birth, a few died and are buried in the gravel. The tank is a 1.5 gallon, it has not filter. There is about 15 platy fry left, and I'm scared they will die. The tank is almost too small to clean, and to remove the dead babies.... i need to know what's best. They are only 2 days old. THANKS