i was changin out the plants in my 20 gallon tank an i have a large cichlid stone that i put plants in front of to make them feel more secure. well anyways as i was puttin the plants back my 3 1/2-4 in male convict started nippin my hand lol is was a wierd feeling an the female stayed inside the stone. has anyone else had ther convict attack them while messing around in ther tank?