I recently got a 60 gal tank and stocked it with 8 tiger barbs (2 red, 4 green, 2 regular) and 3 dojo loaches. The 2 regular barbs are terrorizing my loaches! They seek out the larger loach (4”) and only bother my 2 little golden loaches (1-1/2“) when they emerge from hiding. I read that schools of 8 or more would keep them from bothering other species of fish. How do I make them stop? Since my poor 4” loach is bigger than them, he can’t hide anywhere that they can’t also fit.