Madagascar Rainbow Fish And Tetras

We have recently added 3 Madagascan rainbow fish into our tropical tank. They seem to be absolutely fine with the mollies however, they chase and bully the tetras and guppies we have!? I have read that rainbow fish are good social fish and get on well with most species, so I am concerned that the tetras and/or guppies will get stressed out. Do I need to take out the rainbow fish? Help!

I don't have any direct experience of these fish, but they are ones that I am considering in a future tank.
It's often worth looking at a few sites to use a sort of average of all the advice given. Seriously fish say that they should be kept in groups of 8 - 10, so perhaps that is part of the problem, or it could be just the size difference between the fish, or they might need some more room.
http://www.seriouslyfish.com/species/bedotia-madagascarensis
Sorry I can't be of more help, but hopefully some of the more experienced keepers will be able to help.

PS. to my previous post:

Looking at this species profile for the Madagascar rainbow fish http://www.seriouslyfish.com/species/bedotia-madagascarensis/, it looks as though it needs to be kept in a group of 8-10+ too, so that may be a factor if the 3 you bought are the only 3. Provided that the tank you have is at least 4 foot in length, then buying more may be the route to go, in addition to increasing the size of the shoals for the other fish if need be.

However, the Madagascar rainbow fish are / will become a lot bigger than the tetras, guppies and mollies, and I'd be concerned about whether they might be capable of eating them when they get larger - any fish generally eats any tankmates that are small enough to fit in their mouths.

For the above reason, and/or if your tank is smaller than 4 foot and so it wouldn't be feasible to increase the size of the shoal, and particularly if this bullying is still continuing, I'd be inclined to give them away (or get a 4-foot tank specifically for them and fish their ultimate size if you're in a position to do so). If the pet/aquatic shop can't take them back, then aquarist-classifieds.co.uk is a good option.

Hope that helps.