i have a farowella in my 125 that i think only scrubbs the sides of my tank in the heads up position. the tank has a righ along the bottom of it that starts about the heighth of its mouth. so i dont know if it doesnt like to be nose down, or maybe if someone in the tank bothers it when it gets that low. there are 2 yo yo loaches, one albino rainbow shark, a hybrid synodontis angelicus, 1 spotted and 1 striped raphiel cat, 1 3 spot eel, a senegal birchir, and one L240 pleco.