i know Fatf's and armatus can cohab, however there both 5'' and I wanted to mix them now, i have some red hook dithers and a galaxy pleco, and a geo abalius. will my armatus outgrow and eat my Fatf because he would have to grow to 10'' to do that right? also i was going to put them in there 300 gal tank when i buy it toward's christmas

