I have a 3-4 inch true perc in a 90gal. I have had this fish for about 3-4years. I just recently bought a 1 1/2-2 inch true perc to try my hand at breeding. I have only had the new perc for 3-4 days. I have noticed today that my 3-4 inch perc which hosts in my mushrooms been laying down in the mushrooms most of the time. When i come to the tank the perc comes to glass and swims around till i leave and then goes and lays down in the mushrooms again. The smaller perc stays close by. could they have aready have mated. Before i put the new perc in the tank the ony time the larger one layed in the mushrooms was at night. Any info would be great.