hey guys, i recently bought 2 blue gourami's (or 3-spot gourami's) and they're acting weird.. well, lets start off from the petstore i got them from... they were moving back and forth in the tank (not swimming around, but kind of like a sawing motion) and i thought that was neat, so i got 2 of them... i put them in my tank, and they quit doing that... but now one of them stays hidden in the plants on one side of my tank.. the other one will swim around more often, and will occationally chase the hiding one out, around the tank a round or two, and then just stop like nothing ever happened... i don't even know if these are a male and female... they both look the same to me (their top fins are the same length, although one is slightly more pointed than the other)... and they aren't showing a dark blue like i've read about.. i can't tell if the more active gourami is trying to make a bubblenest or not... it'll act like its eating the plants, and then spit or blow out some bubbles, but its at or near the bottom of the tank, and none of them make it to the top... actually, its more like air bubbles as a by-product of shooting out water... here's what i mean... like if you have a drink of water, hold it in your mouth, stick your head underwater, and spit or blow out the water, it will cause tiny bubbles... well that's what this fish does... so what's going on?? why the agression?