I just put 2 oto cats in my tank last night to add to my "cleaning crew". I thought they were supposed to be fairly shy fish, but I've seen different in the past 24 hours. They are both doing laps around the tank. Almost in unison, they go up and down and back and forth against the glass just zipping along. The 5 x-ray tetras just sit there and watch the show. It is quite entertaining, but I was wondering if this is normal behavior. The tank is fully cycled and has live plants in it. I bought some Hikari algae wafers just in case. I put half of one in the tank last night, but the corys got to it first. Are they just getting used to their new home? Are they starving and just frantically swimming around or are they just being frisky? Any insight would be greatly appreciated. Thanks!