My Goliath 13-14" eyeball.....

  • We are currently upgrading MFK. thanks! -neo
That's a hell of a difference between that last pic you posted of him much younger and now. He does have a super squared off jaw compared to most, but I have seen pictures of several with the same shape. Definitely looks tough.

Sashimi and Tuna - how much current are you both running in your tanks? Curious to see if the tail fin shape difference between your two goliaths has anything to do with current or if it's just a genetic difference.
 
Tons of current......Rio 20HF 1200 gallons p/h out of sump....probably like 900 after head, 2X FX5, and 2X Marineland Max Jet 1200..........
 
RampageRR said:
That's a hell of a difference between that last pic you posted of him much younger and now. He does have a super squared off jaw compared to most, but I have seen pictures of several with the same shape. Definitely looks tough.

Sashimi and Tuna - how much current are you both running in your tanks? Curious to see if the tail fin shape difference between your two goliaths has anything to do with current or if it's just a genetic difference.
Click to expand...

I've got two Reeflo Darts at 3,800 gph each. It's still not enough. I don't believe tail width has anything to do with flow rates tho. I still think it's a species variation thing.

I really believe there's something going on with GATFs that are not documented.

The difference between TATF, FATF and BATF are very subtle. A square jaw and wide tail versus narrow jaw and thin tail is much more pronounced differences compared to the varieties of other Tigers.

Another difference I've noticed is the shape of the bodies. Some are more straight shaped and others are more tear drop shaped. At first I thought maybe it had to do with how "fat" they were but as I see more and more GATF pictures I believe it has to do with species variety.
 
sashimimaster said:
I've got two Reeflo Darts at 3,800 gph each. It's still not enough. I don't believe tail width has anything to do with flow rates tho. I still think it's a species variation thing.

I really believe there's something going on with GATFs that are not documented.

The difference between TATF, FATF and BATF are very subtle. A square jaw and wide tail versus narrow jaw and thin tail is much more pronounced differences compared to the varieties of other Tigers.

Another difference I've noticed is the shape of the bodies. Some are more straight shaped and others are more tear drop shaped. At first I thought maybe it had to do with how "fat" they were but as I see more and more GATF pictures I believe it has to do with species variety.
Click to expand...

I agree on the wide variation in appearance for goliaths. You're both running a good amount of current, so I would have to agree that it probably has nothing to do with the current provided. There is a notable difference between yours and 1hottuna's - in overall shape, snout shape, and in the tail fin. Pretty interesting, not sure how mine will look at that size yet.
 
Guys, there's only one species of GATF that lives in the Congo. This was proven beyond a shadow of a doubt by Goodier et al. (referenced below) The differences we see in GATF are nothing more than variation between individuals. Of the other two common species, TATF and VATF, we see that VATF has a similar range of difference between specimens and TATF is just all over the place; it's much worse than the GATF situation. Those are all clearly the same species and no one disputes that for them. We can't speak for FATF and BATF because of the lack of specimens in the hobby.

If you guys want something really interesting to pore over, try to figure out what is going on with Hydrocynus cf. "Haplogroup A" as described by goodier et al. This thing is an off shoot of the Hydrocynus vittatus species complex (VATF sensu stricto and Groups B, C and D). It diverged from the Vittatus Complex at about the same time as did Hydrocynus tanzaniae, which is a direct daughter lineage of the Vittatus Complex. It is, interestingly, more closely related to the part of the Vittatus Complex that became TATF than it is to the rest of the Vittatus Complex.

Guys, that's where the real head scratcher is in the ATF field; its not the issue with the shape of the tail or head of a GATF. You guys are SERIOUSLY over-thinking this issue.


journal.pone.0028775.g004.png

Click me for the paper

journal.pone.0028775.g004.png
 
  • Like
Reactions: Ash_water
Chicxulub said:
Guys, there's only one species of GATF that lives in the Congo. This was proven beyond a shadow of a doubt by Goodier et al. (referenced below) The differences we see in GATF are nothing more than variation between individuals. Of the other two common species, TATF and VATF, we see that VATF has a similar range of difference between specimens and TATF is just all over the place; it's much worse than the GATF situation. Those are all clearly the same species and no one disputes that for them. We can't speak for FATF and BATF because of the lack of specimens in the hobby.

If you guys want something really interesting to pore over, try to figure out what is going on with Hydrocynus cf. "Haplogroup A" as described by goodier et al. This thing is an off shoot of the Hydrocynus vittatus species complex (VATF sensu stricto and Groups B, C and D). It diverged from the Vittatus Complex at about the same time as did Hydrocynus tanzaniae, which is a direct daughter lineage of the Vittatus Complex. It is, interestingly, more closely related to the part of the Vittatus Complex that became TATF than it is to the rest of the Vittatus Complex.

Guys, that's where the real head scratcher is in the ATF field; its not the issue with the shape of the tail or head of a GATF. You guys are SERIOUSLY over-thinking this issue.


View attachment 957319

Click me for the paper
Click to expand...

The tigerfish god has spoken.

Sent from my SCH-I545 using MonsterAquariaNetwork App
 
Rob coming in hard with a dose of knowledge, nice! Id love to see a pic of this new unclassified specie

Sent from my DROID4 using MonsterAquariaNetwork App
 
You must log in or register to reply here.
MonsterFishKeepers.com
Top Bottom