i've been checking around on these guys and found conflicting information: some have said these guys have a distinct pecking order, others have said they're very peaceful and school nicely... any experiences? if they do have a pecking order, is it vicious like the tiger barb pecking order? i took my tigers back to the LFS because they kept fighting - nasty little guys - and i want to replace them with a peaceful, colorful schooling fish for my planted tank. it's 46 gallons, has a BN and 4 yo-yo loaches. what have been your experiences with harleys?