Welcome to the forum
I keep rainbows with cichlids and think that they are a great match. Just curious - what led you to believe that it might not be?
I suggest you look at a 75 for an upgrade, rather than the 55. The difference is that the 75 is 18 inches wide and the 55 is 12 inches wide. That's a big difference that the rainbows (you'll be getting more I hope....) and whatever cichlids you get will really enjoy.
I keep rainbows with cichlids and think that they are a great match. Just curious - what led you to believe that it might not be?
I suggest you look at a 75 for an upgrade, rather than the 55. The difference is that the 75 is 18 inches wide and the 55 is 12 inches wide. That's a big difference that the rainbows (you'll be getting more I hope....) and whatever cichlids you get will really enjoy.