I cycled my planted 20g tall tank before I got the fish and ammonia, nitrate and nitrite were all at 0 ppm. I added 6 danios, 3 amano shrimp and a male Dalmatian molly. They've been in the tank almost a week now and we noticed the molly has the shimmies (determined through web searches). Problem is, I can't figure out how to fix those. I tested the water and got 0.25 ammonia, 0.25 nitrite and 10-15 ppm nitrate. I did a 6 gallon water change (I only have 2 3-gallon buckets right now) treated with enough Prime for the whole tank. Poor Marshall (the molly) seems to be breathing a little fast so I'm going to add a bubbler/airstone to the tank tomorrow. So how do I: 1) fix the parameters and 2) fix the shimmies and quick breathing?? Thanks in advance!!