This question came to my mind today when I was thinking about all the discussion around Aquabiomics and the genetic diversity in our aquariums. If we want to increase the genetic diversity in our own systems there are a number of methods we currently use such as adding live rock, mud or sand from either the ocean or an established system. However these methods carry with them their own inherent potential problems such as the introduction of an undesirable micro or macro organism. One of the potential solutions to this is to test the system from which you are getting the rock, sand, etc. My question is is there an organism that you 100% don't want to get in your system as there is basically no way to come back from it. The human example would be something like the Sudan version of the Ebola virus with a death rate >80%.
I hope this also opens up some discussion around some of the undesirable but survivable nasties we see in our aquariums and the methods we have to remove them and their success rate. For example I've had aptasia in my system in the past (probably still do) but it's controlled by my copper banded butterfly fish, so for me the risk of adding something from a system with known aptasia isn't all that concerning to me. Ick? Have had that too. I feel comfortable that the hobby has some solid solutions to that. Dino's? Thanks to the work by @mccarol and others on this forum, no longer a death sentence.
Looking forward to hearing everyone's thoughts!
I hope this also opens up some discussion around some of the undesirable but survivable nasties we see in our aquariums and the methods we have to remove them and their success rate. For example I've had aptasia in my system in the past (probably still do) but it's controlled by my copper banded butterfly fish, so for me the risk of adding something from a system with known aptasia isn't all that concerning to me. Ick? Have had that too. I feel comfortable that the hobby has some solid solutions to that. Dino's? Thanks to the work by @mccarol and others on this forum, no longer a death sentence.
Looking forward to hearing everyone's thoughts!