Geo ID help!

[jason888]

Hello, I am confused about Geophagus altifrons and Geophagus abalios, please anyone who can help me ID my Geo?
Photo attached. Thank you!

An what is the main difference between these two species?

[Bas Pels]

if I remember correctly, Abalios never hasd this smal a dot on the side, so it must be G altifrons

G altifrons also grows significantly larger

[saral]

if I remember correctly, Abalios never hasd this smal a dot on the side, so it must be G altifrons

G altifrons also grows significantly larger

G. abalios does have a midlateral spot, the name abalios just refers to the lack of preopercular marks. The mid-lateral spot of abalios, though, is larger and differently shaped. The colour pattern in the fins is another difference: most notably the round, small spots in the caudal fin are typical to altifrons whereas the spots in abalios are wider even in a small fish and then tend to slowly change into stripes as they grow up.

The overall colour is also another indicator between the two species – while altifrons of course exhibits quite a bit of variation depending on the population, G. abalios is never that heavily blue/green and instead the longitudinal stripes on their flanks are yellow/orange/red combined with lighter tones of green and blue.

The number and appearance of lateral bars on the flanks is yet another difference, but that does not help much in this case.

[abarilot]

Looks like altifrons to me. Here are a couple quick ways to distinguish the two.

G. altifrons: lack of facial markings, midlateral spot covers 4 scales or less (sometimes not present), and spotted caudal pattern

G. abalios: lack of facial markings, midlateral spot present (larger than 4 scales) and coincides the third bar on flank, and the caudal pattern has no distinguishable pattern (mix of spots and stripes)

Hope this helps

[jason888]

Many thanks! so I think its altifrons then:)

[Lotsapetsgarfhts]

I just carried my laptop down to the basement where I have 10 altifrons, they match you photo perfectly.

[jason888]

I just carried my laptop down to the basement where I have 10 altifrons, they match you photo perfectly.

Thank you, hope your laptop is not too heavy, haha