wierd swimming fry

[Dodode]

Hi all! I got my 1st fry about 3 months away, there was 14 lil CPD’s, all survive, but there was 3 who’s wierd swimming – that i saw abot 1 month after hatching. They moving up in short moves, they do not swimmming normally like others and they developt slowly. Guess its some problems with swimming bladder.
Well got some video’s if anyone have idea what i do wrong will be gratefull for any help. So there was 2m and 3f, after 7 days i put them out and after 9 days i saw 1st fry. After 11 days from hatching they start swimming. Tank is 20l with lots of java moss, sponge with air filter, and temp. was 24 C. Water was about 25-30 cm deep. Here is some videos.
[youtube]http://www.youtube.com/watch?v=Q4XCMyhUVIw[/youtube]
[youtube]http://www.youtube.com/watch?v=8ryyhABfDJo[/youtube]
[youtube]http://www.youtube.com/watch?v=LRbFLGnZhlk[/youtube]

Last video – they r about 2 month old and if u look carfully one swimming like i explain before.
Thx for any idea’s.

[BallAquatics]

Hi Dodode, welcome to the forum!

I agree with you, it is some sort of swim bladder problem. I used to have this problem sometimes with fry before I started feeding lots of live foods.

Dennis

[ged]

It does appear to be swim bladder seems to happen every so often, maybe 1 or 2% in the fish I have raised.

[Dodode]

Well they eating brine shrimp when get big enough. So thats about 2-3 weeks old. What kind of other live food u mean.
Some ppl told me different ideas – that its maybe 2 high water level, lil oxygen in tank, hard tap water i use (17 kh – next try of breeding will be with RO water) – lots of ideas so got lil confused.
Will try with RO and oxygen tablets on next try. Got u informed what will happen.
And i almost forgot – great forum for all CPD lovers. Becose of this forum i got my first try with CDP’s breeding successful. Thx 2 all who loves this breathtaking lil fishes and its experiences shared with others. Im from croatia and becose of this great site CPD’s will be popular in one more country.

[BallAquatics]

I start fry with green water and then move on to micro, walter & banana worms. After that it’s golden pearls, a brine shrimp replacement food.

It’s great to hear you like the forum. Lots of friendly and knowledgable people around here…

Dennis

[theemon]

dennis, what are “golden pearls”

[Tom2006]

When mine were breeding I had the EXACT same problem with some of the fry. Some when very small some when much larger. Some got better without any help at all and some just died. It must be some sort of problem with the fish themselves

[Dodode]

Rgr, i was also feeding with green water/infusoria who was in java moss, but didnt have microworms – so they eat sera micron and then brine shrimp.
I was looking on web and some fishes have very sensitive swimm blader. Lots of condition in tank and different feeding or genetic predisposition may couse disorder. But CPD’s r very hardy fishes so was thinkin that its not genetic. But still lots of brothers and sisters swimming in my tank and becose of that maybe fry’s dont grow like they should have.

[BallAquatics]

@theemon wrote:

dennis, what are “golden pearls”

They are a commercial pellet type food that comes in a variety of very small sizes. Fantastic for growing fish. All the benefits of bbs without the hassle.

http://www.brineshrimpdirect.com/other-goldpearl-particle-c149.html

I’ve been getting mine at KensFish.com…

http://www.kensfish.com/kensspecialtyfood.html

Dennis

[BallAquatics]

For fry to grow into strong healthy adults they needs lots of high quality food and lots of high quality water.

I’ve raised groups of up to 60 CPD fry in 5 gallon tanks for the first month by simply doing 90% water changes every day. If you don’t do enough water changes, it is believed that the larger fry will release hormones into the water to impede the growth of their smaller siblings.

Dennis

[Tom2006]

i’ve read lots of stories from people all around the world reporting similar swimming problems so for me it must be genetic even if there are ways to help lessen the problem. I just let the problem ones die if they were going to figure its survival of the fittest

[ged]

@Tom2006 wrote:

i’ve read lots of stories from people all around the world reporting similar swimming problems so for me it must be genetic even if there are ways to help lessen the problem. I just let the problem ones die if they were going to figure its survival of the fittest

I agree I have also seen adults try to eat fry and left them injured and cause spinal damage, and have read reports of hydra causing spinal damage as well.

[Dodode]

Well i have hydra in my tank before so thats maybe it.

[ged]

Again I have not witnessed it myself but have seen reports of it, Well the good news is they seem to eat them as adults if as long as they are not to large and you have enough of the adult fish. I used to have them in my tanks as well but I don’t anymore.

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