I had a baby golden dojo in a 55 gallon tank where he swam around all happy and he would nuzzle my hand. We then introduced our female 6 month old golden dojo into the tank the baby is really stressed now. Everything I read said fellow loaches would get along and the female is very gentle and has lived with kuhlis before, but the poor baby has been digging holes in the sand to hide and he freezes up whenever the female swims by. They ate a meal together and the female has interacted with the baby many times and sometimes the baby won't freeze up but I feel so bad and the baby won't leave the driftwood or hidey places and he's breathing pretty fast. Shoukd I separate them again? The poor baby just seems so freaked out. 
