I was on the web site "Cichlid Forum" yesterday and someone tried instruct that Jack Dempseys come from South America, and that all Central Americans are found in soft acidic water, and had some on line site that corroborated his theory.
Even when I posted pics of of me snorkling in alkaline and brackish Mexican cenotes with Jack Dempseys, he would not change his tune.
I was amazed, and then again I suppose not.
This may have prompted this thread.
And Tom (aquanero) I have read those studies before, and reread them again today, although some a bit dry, they are great insight into our cichlid world.
Seeing them first hand is always the best source. I know the Yucatan land is mostly dead coral from millions of years ago, so it is very basic water and high PH.

