curviceps Posted July 31, 2010 Share Posted July 31, 2010 Hi everyone I have 7 Green Terror juveniles growing out in a 55 gallon tank. They are approx 4cm long at the moment. I plan to pick out a single male from the group. How long do you think I have before I will have problems with aggression and need to decide which one to keep? Cheers Link to comment Share on other sites More sharing options...
firemike Posted August 1, 2010 Share Posted August 1, 2010 Provided you have enough places for them to hide... you could probably keep them there until you're satisfied. The aggression from the dominant (hopefully male) one will be shared around - at this time, you'll should be able to work out which is your dominant male. Having said that, it's tough these days until you see obviously signs of a bump or long fin extension. I've seen females that look pretty nice and act very 'male'. One of my GTs was purchased around 4cm, I was confident it was female but now at 8cm - I'm thinking male judging by the behaviour and colour changes. Link to comment Share on other sites More sharing options...
Link2Hell Posted August 1, 2010 Share Posted August 1, 2010 sexing is pretty eassy males develop the reticulated marking in the unpaired fins and females don't ............ have a look at some pics it with show in the dorsal, anal and caudal fins Males also have a more metallic body they will sort themselves out when old enough, this can be at just over 5 cm size .......... watch for the female to turn very very dark after pairing as this and site cleaning point to spawning Chris Link to comment Share on other sites More sharing options...
curviceps Posted August 3, 2010 Author Share Posted August 3, 2010 Thanks for your replies. One of them is starting to show a strange-shaped head... i hope it's the beginnings of a hump Link to comment Share on other sites More sharing options...
dobbin4 Posted August 3, 2010 Share Posted August 3, 2010 They dont get any hump untill large,Would be a deformed head at only 4cm, sorry. You can sex them way before then as Chris say's. Should not be a problem in a tank that size. Link to comment Share on other sites More sharing options...
benno Posted August 3, 2010 Share Posted August 3, 2010 a 4cm GT with a hump certainly aint unusual. Have seen the get massive humps at tiny sizes. Have bred heaps of them and the young lads wth the biggest humps usually turned into the best males. Link to comment Share on other sites More sharing options...
curviceps Posted August 3, 2010 Author Share Posted August 3, 2010 G'day The fish in question is probably 5+ cm (4 cm was the average, and this one is the largest of them). See picture below - does it look like a male, and does it look deformed or normal? Link to comment Share on other sites More sharing options...
benno Posted August 3, 2010 Share Posted August 3, 2010 It looks great mate nice and fat. Cool little fish no deformities there mate. Bit hard to tell sex atm as i have seen females with littl humps too. Link to comment Share on other sites More sharing options...
dobbin4 Posted August 3, 2010 Share Posted August 3, 2010 nice fish as said by benno what i meant was you cant tell by the hump being a male as both sexes get them as said. but lg humps are male and thats some growing to go. My guess would be male. Fins, colour,hump, size. Link to comment Share on other sites More sharing options...
curviceps Posted August 9, 2010 Author Share Posted August 9, 2010 Its hump seems to be getting bigger by the day... see latest pic Link to comment Share on other sites More sharing options...
benno Posted August 9, 2010 Share Posted August 9, 2010 Id confidently call that for a male, and a top qualitly one at that. Hes gonna turn into a stunner Link to comment Share on other sites More sharing options...
Batty Posted August 10, 2010 Share Posted August 10, 2010 can the humps go away for any reason, I have a pair and now that they are in my main tank the male's hump has reduced and the female chases him, maybe he has started batting for the other side. Oh they are about 6cm, I have noticed that they are slightly different colours too. Link to comment Share on other sites More sharing options...
Ducksta Posted August 10, 2010 Share Posted August 10, 2010 Batty - Perhaps his hump hasn't shrunk, but he's just grown in to it a bit better? I've never seen a fish that has lost a hump, but it's just fatty tissue - not bone or cartilage - so presumably it's not impossible? curviceps - That's a cracking little fish. Personally, I'm partial to the white form but yours looks good for a young fish. Link to comment Share on other sites More sharing options...
Topogigio Posted August 10, 2010 Share Posted August 10, 2010 Batty - Perhaps his hump hasn't shrunk, but he's just grown in to it a bit better? I've never seen a fish that has lost a hump, but it's just fatty tissue - not bone or cartilage - so presumably it's not impossible? you are right there, definitely not impossible - in fact possible... i saw a couple of GTs brought in to the LFS and within days they lost their humps, why? who knows, new environment/stress more likely.... and by the way, that little tucker is a boy, here in Melbourne LFS you can pretty much sex these rugrats at 4-5cm, their colours, especially their flanks are just so vivid. Link to comment Share on other sites More sharing options...
curviceps Posted August 15, 2010 Author Share Posted August 15, 2010 The male seems to have paired up with a girl. They are doing the jig and cleaning the rocks. The pair of green terrors are chasing the other green terrors, but leaving the other tank mates alone (which include 4 spotted silver dollars and 3 clown loaches). So far, no injuries. Given that the rest of the fish are still quite small and the tank is relatively big with driftwood and other hiding places, do you think I need to separate the other green terror juvies asap, or will I be able to leave them together for now? Cheers Tim Link to comment Share on other sites More sharing options...
Batty Posted August 15, 2010 Share Posted August 15, 2010 start looking for somewhere else to keep them Link to comment Share on other sites More sharing options...
curviceps Posted August 15, 2010 Author Share Posted August 15, 2010 Yeah, that's what I reckoned. Will be trading them in at an LFS. Link to comment Share on other sites More sharing options...
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