I just got a Royal Pleco this weekend, right now he is about 4 inches. Today when I got up I noticed he was sticking to the filter outlet. Its a Tetra Whisper 60, so it has two waterfall type outlets. I am not sure what this means. When he does it, he is part way out of the water (just enough so his eyes are out of the water). When I gently poke him he swims away, but then later he was back in the same spot. Is this usual? Is it a problem? I just cleaned the tank, so the water level is right up to the filter, in a day or two I don't think he will be able to do this because the water will be too low. He is a cool looking fish and I don't want to lose him.
