Well... I know all loaches are more prone to hiding if there aren't enough of them, though *technically* you never had enough of them, right? Shouldn't even the yoyo's be in shoals of 6+? Either way, I'm glad that they've found a way to feel a bit more comfortable, and that the bichir doesn't seem to mind - is it the same one that they tend to stick close to?
Do these babies have NAMES? I know Queen does, but do the others?
When are you going to get the new additions? I'm assuming you're waiting for things to establish a bit in this tank? And how is that going? I know you don't generally test, but have you checked the water to see what the water parameters are like in there? SOooooo curious!!! Sorry!