Hi! One of my swordtails gave birth recently (about a week ago) and while cleaning I discovered 2 babies that I have separated and kept in a small box. This is the first time it happened for me. Also one of the female swordtails died a few days back. It was getting large white discoloured spots on the left side at 2 or 3 places. 0 ammonia 0.1 nitrite and 6ppm nitrates. Didn't look like ich at all. Now: 1. Is it possible the dead one was the mother. How often do swordtails die giving birth? Were the spots normal? 2. How large a tank should I get for the 2 of them until they grow larger than an inch? Maybe the next time more are born and I'll need to shift them. Would a 3 gallon suffice? I get a feeling it's too small. 3. I'm feeding them crushed flakes for now, can I give them live bloodworms now or later? Or anything else you'd suggest. 4. What filter to use? Will a sponge filter attached to an air pump be sufficient? There is no mechanical filtration at all with it. Thanks.