Can you please split the mod into a fish only mod and a worldgen mod? Or add a config that completely disables worldgen and new blocks.. I really like the fish in this mod, but I would really like to have it without any extra features..

Not easy as it sounds. Split mod feature into separated mod is like making a new mod entirely. I've already integrated all the features with the fish and planned to make a food mod addon. So one mod should be a solid solution for me.