Whats The Deal? I Have A Belly Crawler Pike Cichlid And A Green Terror. The Pike Has Always Kind Of Scratched His Body Against The Gravel And Bogwood, And I Just Thought He Was Weird. Now My Green Terror Is Doing It Also. There Was A Jack Dempsey With Them Until Earlier Today, I Gave Him His Own Tank. Is This A Parisite Or Something Like That? Or Do Fish Just Do That? My Red Devil Or Oscars Have Never Done Such A Thing. Its Odd.