Punter Posted March 17, 2012 Report Share Posted March 17, 2012 Hello just recently purchased a mangrove jack around 25cm. Just wondering if there is a good website or post relating to mangrove jack care or if somebody on here can give me a few tips. The jack is very shy at the moment i put a few frozen prawns in and he wouldn't touch them i left the room about 20 minutes later they were gone. Currently in a 6x2x2 with a piece of driftwood and a few rocks. Thanks, Punter. Link to comment Share on other sites More sharing options...
mines bigger Posted March 17, 2012 Report Share Posted March 17, 2012 Just let him settle in, it sounds like you may have got a wild caught fish by your description, patience is the key and don't resort to live food Link to comment Share on other sites More sharing options...
Punter Posted March 17, 2012 Author Report Share Posted March 17, 2012 Hmm, the guy i got him off said he had him since a fingerling, he's not overly shy just wouldn't eat while i was watching him. He also isn't showing much colour mostly silver with a hint of red. I did try some hikari carnivore pellets but they didn't get eaten so i took them out. Link to comment Share on other sites More sharing options...
Keegan013 Posted March 17, 2012 Report Share Posted March 17, 2012 Was this advertised on gumtree or something like that for around $100? Link to comment Share on other sites More sharing options...
Punter Posted March 17, 2012 Author Report Share Posted March 17, 2012 The ad was on petlink and was $100. Link to comment Share on other sites More sharing options...
Keegan013 Posted March 17, 2012 Report Share Posted March 17, 2012 Yeah thats the one. I was talking to the guys and he said it was on pellets but he wanted to bulk it up and make it aggressive so he fed pillys and live food. Link to comment Share on other sites More sharing options...
GQER Posted March 18, 2012 Report Share Posted March 18, 2012 give him some time he will come around and be feeding out of your hand soon Link to comment Share on other sites More sharing options...
the cichlid kid Posted March 19, 2012 Report Share Posted March 19, 2012 In my experience, the higher the salt content in the water, the more red colour jacks will display. But like any change in water condition, do it very slowly/gradually. Link to comment Share on other sites More sharing options...
GQER Posted March 19, 2012 Report Share Posted March 19, 2012 dull lighting and dark gravel will help the most with getting him to colour up a nice blood red i dont add any form of salt Link to comment Share on other sites More sharing options...
Punter Posted March 19, 2012 Author Report Share Posted March 19, 2012 Very nice looking fish Mine has taken a turn for the worst, here's the link if there's anything you can recommend please let me know : http://www.qldaf.com/forums/diseases-fish-care-water-discussion-12/sick-mangrove-jack-64834/ Link to comment Share on other sites More sharing options...
Craigo Posted March 20, 2012 Report Share Posted March 20, 2012 JAcks love the salt! I have seen mosters in aquaria but always salt water. Link to comment Share on other sites More sharing options...
GQER Posted March 20, 2012 Report Share Posted March 20, 2012 there are some big boys in awonga dam near gladstone that havnt seen any salt and never will Link to comment Share on other sites More sharing options...
Sclero p Posted March 21, 2012 Report Share Posted March 21, 2012 (edited) Given that a significant number of large Barra recently took the opportunity to head for the salt it is most likely that all of the Jacks with their lifecycle and preference of habitat would have done the same. Edited March 21, 2012 by Sclero p Link to comment Share on other sites More sharing options...
GQER Posted March 21, 2012 Report Share Posted March 21, 2012 i think a small percentage of fish may hav takin the leap for freedom but my point being there are some large healthy jack in there that are not in salt water i think fresh food is way more important then salt for a healthy jack and packet bait isnt fresh. Link to comment Share on other sites More sharing options...
GQER Posted March 21, 2012 Report Share Posted March 21, 2012 also the largest jack ive seen is at under water world and guess what its in fresh as well Link to comment Share on other sites More sharing options...
Sclero p Posted March 21, 2012 Report Share Posted March 21, 2012 Largest Jack I have seen came from 80 metres of water of the Gold Coast and guess what it was salt lol. Link to comment Share on other sites More sharing options...
GQER Posted March 21, 2012 Report Share Posted March 21, 2012 i thought we were talking about captive breed not wild jacks BIG difference mate Link to comment Share on other sites More sharing options...
Sclero p Posted March 22, 2012 Report Share Posted March 22, 2012 Captive bred Jacks and their stocking in impoundments ? might be able to help there , first Jacks cultured and stocked in an impoundment were in December 1998 with 2655 with a mean length of 27.5mm stocked into Lake Morris an impoundment closed to fishing. This was followed by 1325 fish with a mean length of 86.5mm in June 1999. Lake Tinaroo was next with 181 fingerlings in 1999/2000 and 4297 in 2001/2002 of interest here were 2 of the original stocking captured in 2002 @35cm. Awoonga was first stocked in 2000/2001 with 180 fish then 4013 fish in 2001/2002 first recapture in 2003 largest fish recorded recaptured 69 cm I think. The current Awoonga fishery manager/ GAWB hatchery manager is a member of this forum and would be the best person for any further info on Awoonga and cultured Jacks as for some time has been the only person producing them. Link to comment Share on other sites More sharing options...
GQER Posted March 22, 2012 Report Share Posted March 22, 2012 im in regular contact with the guys at the gladstone hatchery as the jacks are a hell of a lot cheaper then anywere else but thay havnt spawned them yet this year hopefuly soon Link to comment Share on other sites More sharing options...
mines bigger Posted March 22, 2012 Report Share Posted March 22, 2012 they just released a heap into the dam.. maybe that was last years spawn? Link to comment Share on other sites More sharing options...
Sclero p Posted March 23, 2012 Report Share Posted March 23, 2012 None stocked this year, last stocking was 2009/10 (which incidentally was the last time ANY Jacks were cultured) Mangrove Jack stocking thus far has been done on a trial basis and under review. Link to comment Share on other sites More sharing options...
trk18 Posted March 23, 2012 Report Share Posted March 23, 2012 8OOff the point but red dragon has a 55-65cm monster!! but its sold allready. worth a drive just to have a look at the bugger. Link to comment Share on other sites More sharing options...
Leo Posted March 23, 2012 Report Share Posted March 23, 2012 For anyone considering catching their own Mangrove jack, be aware that they are a sport fish with size and bag limits. The minimum legal size is 35cm, and you can keep a maximum of 5. Alive or dead doesn't make a difference. If you catch a small one (less than 35cm) and think "this will look nice in my tank", be aware that you are breaking the law if you keep it. Link to comment Share on other sites More sharing options...
