Next time I decide to clean from the inside ( not very often) I'll see if I can set up a camcorder.. my big female retic hates me with the fire of a thousand suns... no clue why but she's always been very aggressive towards me. She will swim at me, and sideswipe her tail at me. Ive never left my hand in the tank long enough to see what she'd do when she got close to me, and as soon as I get out of the water she's fine.