loach in cichlid tank

I have 2 golden loach in my gourami tank that insist on latching on to my
goldies so I'm going to have move them. Don't really want to put them into
my community tank as there are a couple of goldies there too. I have a
rainbow tank but will they do the same thing with my large Australian
rainbows?
I also have a Malawi cichlid tank. The ph and hardiness is of course
different but also will the cichlids attack the loach - much as I'm fed up
with the bloody things, I don't want to be cruel to them! The other option
is a tank with geophagus jupari and bush fish (Ctenopoma oxyrhynchus I
think) in. The bush fish, despite opinions to the contrary are very placid
so are they going to start latching on to them too?