I'm new to this forum, although I've spent a lot of time researching fish on here and other sites.
About a year ago, I went to Petco and got a 10 gallon tank. I chose 3 neon tetras and 3 white skirt tetras (which are apparently also called white widows, gold skirt, white fin, etc). Almost immediately, one of the neons and two of the white skirts died. When I went back to replace them, a different employee was very knowledgeable (he explained about schooling fish) but also mean (he said I was stupid for even trying a ten gallon aquarium). He tried to make me get cichilids and told me to just flush my other fish down the toilet. I think cichilids are cool, but I prefer the look of schooling fish with maybe a couple of more "interesting" fish thrown in.
I ended up with 4 neons, 3 emerald corey cats, and the one remaining white skirt.
About a month ago, I got a 29 gallon aquarium and have finished cycling it. I added 3 more neons, so now I have:
7 neon tetras
1 white skirt
3 emerald coreys
I know I need more coreys. I would also like to add two dwarf guaramis.
So here are my questions:
1. Should I add more white skirt tetras, since that one is so used to being alone? I assume that instincts will take over and he'll be happier in a school, but I'm not sure.
2. I know I need to add more corey cats, but neither PetSmart nor Petco carries the emeralds anymore. Will they school if I add 3 albino coreys?
3. Can I add two dwarf guaramis? If I have at least 6 of the white skirts, I'm afraid the tank might be overcrowded, but the knowledgeable/rude guy told me that coreys and neons have relatively low bioloads and so I thought maybe they'd be okay.
Thanks so much! I tried getting help on Yahoo answers, but honestly.. some of those folks are just nuts!