One time at pet smart the common pleco sign said that they needed a 40 gallon tank. I told the person in the fish department that they needed 90 gallons. She said that she wrote it. I genus nobody listens to kids even if they are right. This is even worse the red belly pacu sign said that they needed a 75 gallon tank! One time someone at a different pet smart the person said that her 20 inch texes cichlid was thriving in a 55 gallon tank with 3 silver dollars!!!!!!!! there are like a Google things wrong with that set-up. Yea why did she throw the word "thriving" in there. There are a couple people in my class who like fish. They are learning.one of made HUGE mistakes though. He forgot to feed his fish for 5 days. most of his fish were pretty small so some died. I do help. They do overstock there tanks though. They are leering thogh.