SalmonAfrica wrote:I've looked at Amblyrhynchotes honckenii in the book I often use as a reference for local fish - it looks very similar to what you've said Corvus, however,
Which book? Let me guess:" A guide to the common sea fishes of southern Africa" by Van der Elst?
SalmonAfrica wrote:according to the book, the dorsal fish of the Blaasop isn't see-through like it is with my fish, and the darker back of the fish is separated from the lighter belly by a yellow line.
This yellow line is very faint, you can assume it on your specimen, too, it might get darker when it gets older/mating season. The dorsal can be faint or slightly colored in adults. The anal can also be yellow on breeding females or see-through. Compare to the picture IDd by Randall above. The picture shown in Van der Elst is not very good in my opinion.
SalmonAfrica wrote:However, the book also says that A. honckenii is currently under debate as to what species it is, and whether it may be several species or possibly subspecies.
Van der Elst more exactly says that it is sometimes confused with C. patoca, a fish with a more unclear ID (p. 376). Your specimen is certainly no Chelonodon, but with a very high probability Amblyrhynchotes honckenii, a quite common fish in some areas of South Africa. It can also be confused with Tylerius spinosissimus (now Amblyrhynchotes spinosissimus), but there are several characters of this species your specimen does not show.
SalmonAfrica wrote:With regards to the poison, is this a bad thing as far as my setup goes? He is currently housed with some young groupers (Epinecephalus sp.) which haven't bothered him thus far. Should he be housed in his own setup?
Preferably yes. I don't not know how big the danger truely is or if the reports on its high toxicity are exaggerated, but I would not want to find out at home. It was even commonly used to get rid of cats in South Africa.
Give a man a fish, and he'll eat for a day. Give a fish a man, and he'll eat for weeks.