06-02-2008, 07:16 PM
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Ahh, definitely DON'T add honey gourami to a tank with 3 tiger barbs. I've got honey's and they're great fish, but they need calm tankmates that won't nip them. They have two little tentacles they use to taste with and the nippy tiger barbs will surely bite them right off. If you add more tiger barbs it will help a bit with the aggression, but I still wouldn't add gourami. In fact, if you don't add more tiger barbs they will probably pick on each other a good deal and you run the risk of the biggest stressing the smallest one to death. Adding more tiger barbs is probably the next thing you want to do with your tank.
What sort of substrate do you have? If you have rough gravel the cories won't be very happy. It wears down their barbs that they use to find food with. This matters more than most people realize, when I moved my cories from gravel to sand, I was incredibly impressed with how much more active they were, and how much weight they gained. Dwarf cories are your best bet, as you can fit more of them. There are several species, although you may have to look around to find them. My LFS regularly caries at least one type.
Speaking of fish stores, it sounds like the one you are going to is not very good. It makes me worry about the health of the fish in the store. If they don't know how to do something as basic as cycle a tank, what's to say they can tell the difference between a sick fish and a healthy one? I'd recommend looking around for a local aquarium society, most of them have a forum where you can get a recommendation for a reputable fish store.
I'd *really* recommend waiting a little bit longer until adding fish. I know it's hard to wait, but it will be so worth the stress of water problems. When you do add them and this is really IMPORTANT, you need to know that adding more fish can cause your tank to cycle again. The bacteria will be able to keep up with 1 or 2 more fish being added, but if you add all the fish you want at the same time, you'll have the same problem of too much fish waste and not enough ammonia eating bacteria.