This is all such a mess, as you stated Aaron, more harmfull matter comes in on ships than from Marine reef keepers in NZ. I cant remember the exact figure from my marine sci, stage 2 papper but its something like 15 out of 25 sp of urchin found in Hawaii are also found in NZ waters, has MAF even looked into the sp of small motile inverts etc in the por knights / kermadecs ? I dont think so.
All of the reefers i know and or sell to are responsible they would rather giver stuff away than biff it into the ocean and freeze to death, a big part of the problem is from introduced sp in tropical climates where unwanted algaes/hitch hikers will settle.
Im just so frustrated that so many ppl in higher places really dont know what they are looking at.