bli Posted December 5, 2006 Report Share Posted December 5, 2006 Hi I have a group of 5 Geos, two of which are 15cm and the rest being smaller 8-10cm. I have set up a cave from a number of slate pieces of which the largest of the Geos hangs out in most of the day (only coming out to feed). (Without knowing whether they are male or female, it might make this confusing) When he/she does come out to feed the second largest one always keeps him/her in his place trying to force him/her back into the cave. Often the 2nd largest will rub its body alongside the largest Geo fanning its tail in the others face. Also will often nip at the larger ones side. The big one doesnt seem to mind to much, it just retreats back to its cave or dodges the smaller one. When i first got them (about 5 months ago, the largest one was the dominant one and would never get hassled but over the past few weeks its been all on. Does anybody know what this behaviour means or how to sex the geos. The largest one is beautiful in colour, whereas the smaller one is much more browny yellow tones as opposed to pink, with beautiful blue shimmers all throughout Many thanks http://www.trademe.co.nz/Browse/Listing ... d=79759767 Quote Link to comment Share on other sites More sharing options...
PETEYPLECO Posted December 5, 2006 Report Share Posted December 5, 2006 My Geo is about 5 inches and can be lets say a bit bossy to other fish its own size and nips at my large clown loaches. If I am right its the females that have longer / extended dorsal and longer pectoral fins which are also more coloured. Quote Link to comment Share on other sites More sharing options...
Tracey Posted December 5, 2006 Report Share Posted December 5, 2006 Its actually the males that are more brightly coloured and have longer fin extensions. Quote Link to comment Share on other sites More sharing options...
PETEYPLECO Posted December 5, 2006 Report Share Posted December 5, 2006 ? ? ? ? ? ? Quote Link to comment Share on other sites More sharing options...
PETEYPLECO Posted December 5, 2006 Report Share Posted December 5, 2006 Sorry my mistake of course you are correct the boys are better looking. :roll: Quote Link to comment Share on other sites More sharing options...
bli Posted December 5, 2006 Author Report Share Posted December 5, 2006 they both seem to have elongated fins but as the pic shows, the larger one is definately more colourful. Mind you a bit of red colouring is starting to show up on the browner one. Any ideas about the tail flapping in each others face? Quote Link to comment Share on other sites More sharing options...
herefishiefishie Posted December 5, 2006 Report Share Posted December 5, 2006 I have only ever kept these as a display, in my American days. Sexing is pretty difficult, not much difference at all.The 2nd size fish could be coming into maturity, either it is trying to encourage the male to breed, or it could be an up & coming male trying to test the water. Here's an article that may be helpful. Has a good section on breeding. http://www.wetpetz.com/surinamensis.htm Frenchy Quote Link to comment Share on other sites More sharing options...
cameron Posted December 5, 2006 Report Share Posted December 5, 2006 the tail slapping in the face is aggression towards each other trying to sort out whos the boss in the tank. mine did this when i had them. they should sort them selfs out soon. and the males are the better looking out of the females. The males have alot of red blue and long bottom fins. Quote Link to comment Share on other sites More sharing options...
bli Posted December 5, 2006 Author Report Share Posted December 5, 2006 Hi thanks. Yeah the larger of the two is definately the most beautiful in terms of colouration and has very nice and long pec fins that extend well down. As for the aggression it doesnt seem to bother anyone two much. Once again thanks for your help Quote Link to comment Share on other sites More sharing options...
PETEYPLECO Posted December 5, 2006 Report Share Posted December 5, 2006 Yeah mine is the same as Mystics ! Quote Link to comment Share on other sites More sharing options...
Afrikan Posted December 5, 2006 Report Share Posted December 5, 2006 Hiya We used to keep rather a few Suris, definately the extensions and colouration is the key to difference in sex. we keep Jurapari still, and I have a pair, the female who is slightly smaller and not as bright in colour often hassles the male in the same way your Suri's are behaving, she often crowds him and wavers all over the place, he at times is often hen pecked :lol: Mekhaela Quote Link to comment Share on other sites More sharing options...
Tracey Posted December 6, 2006 Report Share Posted December 6, 2006 He's looking so good, Mystic. I'm starting to wish he was back home again Quote Link to comment Share on other sites More sharing options...
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