so I bought my son a lightly used 180 gal tank for 100$ today I don't get it for a few weeks and I am looking at that as a blessing. I currently have a 3-4 inch RD and a 4 inch red pike and one 4-5 inch bichir in a 55 that I am replacing. what would be a few good tankmates to be researching to help fill this sweet new tank.
