So I've been wanting some sparkling gouramis but the only ones I can find are across the country. So. Someone put up an ad about three unsexed sparkling gouramis and I'm really tempted to get them. But I heard it's hard to sex them when you're not in person. Should I just go and get them? I wouldn't like to have to sell or separate them within a week or two. They'd be going into a 10 gal walstad aquarium and I'd just leave the fry in the tank unless there is an inexpensive way to breed and house them? Thanks in advance.