^ Damn, didn't realize crays cost so much money over there... in HK they are pretty cheap... white, orange and blue crays can be picked up normally for around USD $5 - $10...
As for the quarantine question, worst thing that can happen is you introduce a parasite into your tank and it kills your fish and causes a heap of headaches...
As for the quarantine question, worst thing that can happen is you introduce a parasite into your tank and it kills your fish and causes a heap of headaches...