Alright, I've just completed my very first partial (a little over 20%) water change. For the most part, things are normal. The cherry barbs are acting like themselves, my pleco is fine, the only thing that bothers me a bit is my tiger barbs are zipping all over the tank aimlessly since the second I poured the declorinated water in. They've really taken a notice to this water change. The only difference really is in the temperature. The tank was at 78 and now it's at 80f 27c. I hope I didn't make the water too warm. It's remained at 80 for a little while now. Anyway, I'm just hoping they'll calm down and above all, I want them to be okay.