hi... i guess there was a skirmish last night in my crested tank and one of my cresteds ended up with a scratch on its head that i assume will heal... the problem though is that there seems to be damage to its tail too... the last couple centimeters of its tail look really dry and almost like it is dead... what should i do? should i just make it drop the tail or should i leave it? i isolated the injured crested and it seems no worse for the wear... mostly i just don't want whatever is wrong with the tail to spread... thanks a lot in advance for the help... also... if anyone has an answer to my "is there such a thing as calcium saturation" question that would be appreciated too.. thanks again-paul

