Puntius Johorensis

[steady]

anyone that had this fish before?there is a comfusion about its name and there is not many much in the net...

puntius johorensis

 

[Lateral Line]

there is a comfusion about its name

What is the confusion?

This species caused me problems breeding. I use it in my breeding guide as an example of adult sized fish not being mature, here is the excerpt...

A Case study.

20+ years ago, I had a group of 7 Barbus johorensis in a 1.5m tank. They were all over 100mm long, adult size, I'd had them for a year. I decided I would breed them, and segregated the sexes for conditioning. After 2 weeks of TLC, I followed my normal procedure to breed them.

They happily swam around the breeding tank and did absolutely nothing. I tried another pair, same results. I tried a few "tricks", the fish sailed serenely around the tanks quite oblivious to their desired action. I concluded they were a fiddly species, and would try again at some time, but I needed the tanks for other projects, so back they all went into their original housing.

15 months later, I went back to them. They had possibly grown a little larger but a few mm at most. I split them up again, 2 weeks of conditioning, and then a "quick trial" to make sure they were really fiddly, but none of it. The first pair went straight to the task and produced a decent clutch. The fry, once big enough to move, went to raising tanks and I setup again and used a different pair. Again, no hesitation. My conclusion, although full adult size, the fish were simply not sexually mature when I tried the first time.

 

[mikev]

This is interesting... LL, is your Breeding Guide posted somewhere? From this excerpt it sounds like a great read.

 

[steady]

the confusion is that they are identical to this fish<puntius lineatus> http/www.fishbase.org/Summary/SpeciesSummary.php?id=12141 that is also called lined barb but it doesnt get to 15cm but only 5.5cm

 

[Lateral Line]

If you see B. lineatus and B. johorensis together they look different. B. lineatus tends to be a golden colour above the lateral line and has more numerous and finer stripes then B. johorensis which is basically silver with fewer broader stripes. I actually prefer B. lineatus, but B. johorensis were "new" at the time, and I was interested in breeding them, hence had a collection.

Young B. johorensis are spotted with the spots trending towards and eventually merging to form the stripes. B. lineatus have vertical stripes when young, which break up and develop into the stripes, at a certain point in their growth, they show both which gives an interesting checker pattern.

 

[steady]

many thanx for the info Lateral Line!!!!!!