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What type of fish is this?
http://byap.backyardmagazines.com/forum/viewtopic.php?f=2&t=380		 Page 1 of 2
Author:  veggie boy [ Aug 23rd, '06, 10:52 ]
Post subject:  What type of fish is this?
When I bought my Jade perch and my big silvers, I ended up with a fish that I am increasingly convinced is neither, It is starting to get quite dark now in coulour (earlier than silvers normally do), has dark fins, is smaller than the others and is quite agressive. Here are some pics - I hope you can all spot the one I am talking about.

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File comment: Not the really small on (it's a mongrel too, but don't really care what that is). It's the one higher in shot I am interested in.
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Author:  veggie boy [ Aug 23rd, '06, 10:53 ]
Post subject:  Re: What type of fish is this?
more.

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Author:  Live Beyond [ Aug 23rd, '06, 11:03 ]
Post subject: 
Looks like a Macquarie Perch??
Author:  veggie boy [ Aug 23rd, '06, 11:20 ]
Post subject:  Re: What type of fish is this?
Maybe - fits most of the description, except that mine is agressive. Thanks LB.
Author:  Aquaddict [ Aug 23rd, '06, 13:22 ]
Post subject: 
By counting fins etc of what I can see it looks to be a throwback of the same species. Perhaps it is ill. A fish will be darker than it's peers when ill, also explaining the size difference and agression.

Could be wrong.
Author:  steve [ Aug 23rd, '06, 15:32 ]
Post subject: 
Not familiar with the maquarie. EB did you say yours were argressive? VB also stated this.

Its has the scales more like the silver, but the shape more like the jade so i don't think its either of those.
Author:  monya [ Aug 23rd, '06, 17:44 ]
Post subject: 
Looks a bit like a bream to me, only a stab in the dark though, small scales, very spikey fins :?

Edit slaps head, how the hell could have a bream got into that batch of fish? :oops:
Author:  TimC [ Aug 23rd, '06, 18:23 ]
Post subject: 
Almost definately a Sooty grunter, (Hephaestus fuliginosus) commonly mistaken for our Southern Black Bream (Acanthopagrus butcheri). The most obvious difference is the shape of the lower dorsal fin and the caudal fin (tail fin). Another test is to count the ridges on the anal fin.... if you can... there should be 8-9.

They are a pest fish, I have caught them many times in the Moore River, you can tell the difference on a small fishing rod.

Here is a picture:

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Author:  monya [ Aug 23rd, '06, 18:32 ]
Post subject: 
Tim, I reckon you are right, you can see the line along the body in his photos, doesn't make me feel so bad about the black bream comment though!
Author:  TimC [ Aug 23rd, '06, 18:44 ]
Post subject: 
Good spotting there too monya, didn't see that line. I just new straight away it was a grunter. They are quite aggressive too, I could swear once that I caught the same bastard 3 times one trip.
Author:  veggie boy [ Aug 23rd, '06, 18:49 ]
Post subject:  Re: What type of fish is this?
Thanks everybody - looks like TC gets the prize (of which there is none :P ).

So what should I do with him. Keep it in the system or dispose of it?
Author:  monya [ Aug 23rd, '06, 18:54 ]
Post subject: 
eat it :evil: Show it what happens when you are nasty to your aquarium mates
Author:  TimC [ Aug 23rd, '06, 19:06 ]
Post subject: 
Either isolate it somehow, or let it grow a bit more and do as monya says. They are a bit 'muddy' tasting but they are edible, I suppose it depends on their diet. See how it goes with the rest of them for a while.
Author:  GotFish? [ Aug 23rd, '06, 22:29 ]
Post subject: 
Sheez, it doesn't pay to be different in VB's tank, poor fella better start fitting in or its grilling time it seems!
Author:  Aquaddict [ Aug 24th, '06, 03:14 ]
Post subject: 
All fish must conform to regulation standards. Fish going against the norm are deemed dangerous to themselves and others. Just look at the little blighter, it's obvious he's planning something.

iki sticks and sushi bars, that's what happens to rebellions round here.
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