extinction

I saw this while surfing the web... http://www.digitaljournal.com/img/6/8/7/0/1/4/i/1/4/8/p-huge/Female_Mangarahara_cichlid.jpg If anyone can help the london zoo, I am sure they (and the cichlidae family) will greatly appreciate it. If you can't help, please circulate this because...

Multiple species of arapaima? If so, some could be threatened with extinction. It's not so hard to believe that there are multiple species, just with undescribed differences. It would be a shame to lose these unbelievable creatures...