So I currently have a wolf fish in a 75 gal. It was sold as a black but it may be a mala 4.5 inches. In that tank there is a catfish,megalodoras irwini, a Jack Dempsey 4.5", and 4 silver dollars. In a 55 gal by itself I have an odoe pike that is close to 4" but is obviously much thinner than the wolf and Jack. My plan was to grow the pike to a size where I could put him in with the wolf. I would then let those two grow until they would need to move to a 125g or 180g. Does anyone have any suggestions or ideas about this plan. The only fish that I truly care about are the pike and wolf. (I care about the others but would just move them to another tank if needed, not going to hurt them in any way). I am just wanting my pike and wolf to be in the same tank. Thanks, I'll take any feedback, good or bad.