I have 1 female betta & 6 harlequin Rasboras in a 10 gallon tank. I just added 2 dwarf chain loaches 24 hours ago. All is well between the different species but one chain loach is a bit larger than the other and big will just not stop chasing little.... I know they need to establish who’s boss but how long does that usually take? There are pauses between the chasing but it looks stressful!