A while ago I donated a pair of cacatuoides to a friend of mine, who lives in an area where the tapwater is moderately hard and alkaline (I do not have the exact parameters). As expected, the pair is not breeding, but it is otherwise healthy and happy. Now this person has to move, and she has available in the new place only a 55 gal tank with coral gravel. The questions is, ignoring breeding issues, has anybody kept cacatuoides in tanks with elevated general hardness, such as those occurring with coral gravel substrates? Dionigi Maladorno dionigi.maladorno@roche.com This message presents personal opinions which are not necessarily those of my employer. ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!