A very nice collection of Madagascar cichlids in these tanks. I see at least Paratilapia (right tank), Paretroplus (middle tank, also smaller fish, probably Bedotia or Pachypanchax?) and Ptychochromis (left tank). The historical connection to Madagascar is often evident in both zoos and aquariums in the country. Tragic with the early death of Jean-Claude Nourissat; he laid much of the groundwork in keeping these and one can only speculate what additional discoveries (both in the wild and in terms of captive keeping) he could have brought us.
My knowledge of aquatic animals is not great , neither is my French ! I did get the impression that this Aquarium is working with a lot of rare freshwater species . It reminded me of the Aquarium at London Zoo . Many very well presented , but not large , exhibits with a vast array of unusual and commoner species .
I enjoyed my visit very much . As you pass it on the way to the Zoo from the Metro it makes a good combined day of zoological treats . The same can be said for combining the Menagerie with the Life Science museums in the Jardin des Plantes , and for those who also enjoy plants , the gardens and greenhouses are great .