Have had a 60l tank for 10 months, a Betta, 3 danios, zebra snail, swordfish and a Platy (2 originally, 1 died after 6 weeks). We have 3 Platy fry, first noticed them 6 weeks ago. How do I rehome them and one of the parents? Much as I enjoy the little fellows, I'm worried about overcrowding. Thanks!