What’s up guys, I recently got myself an aquarium. I was really into it when I was younger, keeping aggressive cichlids and other oddball fish, and it did really well. However, life happened and I had to get rid of it. However, now I’m starting again. Planning on keeping a Royal Clown Knife, Arowana, Florida Gar and several Bichirs. However, I’m trying to think of some kind of “Dither” -like fish to keep the the aquarium active. I was wondering if full grown Roseline Sharks would fit the bill? I plan on keeping about 12, and having the monsters start as Juveniles until I move them to the 300 gallon tank. Thoughts, ideas, concerns. Any advice is appreciated.