BallAquatics
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How many breeders do you have in the tank M/F?
Is the moss tight to the bottom of the tank? I try to put in a big enough piece of moss so that the fish can not get to the bottom of it or under it to eat any eggs that fall through.
How long are you leaving the fish in the set-up before removing the adults?
Dennis
Simply stunning photography Glenn. Thanks for sharing them with us.
Are the CPD’s in your photos, offspring of your original group? Do you ever add new fish to the group?
Dennis
I wouldn’t think that the Iwugami layout would provide enough cover to make CPD’s happy. You might have better luck with Danio tinwini… these grow to be just slightly larger than CPD’s
Or perhaps one of the tiny Rasboras.
Best of luck with you new set-up!
Dennis
Well unfortunately it’s all but impossible to diagnose fish sight unseen over the internet. With that being said, I tend to agree with you, I would say the fish are not in very good condition when you are receiving them. It’s too bad the guy at the store is obviously clueless about CPD’s.
Will they eat for you? If so, find something they really like and you should be able to nurse some back to heath and start your own colony.
Best of luck!
Dennis
PS: There is an article on the home page called “Home Sweet Home”. It’s about CPD’s in their natural environment, it contains water parameter info taken at the sight where these fish were first discovered.
I don’t have any experience with the chemicals you mention, I do my best to stay away from adding chemicals to my tanks.
I can say, it’s been my experience that CPD’s are much like most of the other Danios and are quite tough little fish. Other than fish that I have received that were weakened through shipping, I have suffered very little loss with my breeders or offspring.
Dennis
Snail, sorry to hear you are having a time with your new fish.
I can’t say that I have moved these fish from one pH to another, but I have kept them in a range from 6.6 up to 8 without any problems.
What was the pH of the water where you purchased them? For years, the general rule of thumb is no more than a .2 change in a 24 hour period, but I’m sure if that still applies or not.
Are the fish new arrivals at the store where you purchased them? Each time I have purchased wild caught fish, well 3 out of 4 times, I have lost fish due to their very poor condition.
Dennis
@In2wishin wrote:
Can you see the eggs with the naked eye? What common item can you compare them to? I am not sure what I should be seeing.
I just set-up some traps today and got this photo of some eggs. If you zoom in where the red ^^^^ are you can see the eggs.
http://www.celestialpearldanio.com/images/stories/CPD/2816x2112_CPD_Eggs.jpg
There are lots of other eggs in the trap too, this was just an easy group to point out.
Dennis
They can start spawning at 12 weeks old. That’s one of the reasons they use Danios in genetic research, they can get 3 to 4 generation in a years time.
Tom is most likely correct – they are eating all the eggs and/or fry.
Dennis
It’s been my experience with swim bladder problems that they very often grow out of it. Every once in a while, I’ll have a fry that has the problem. I put them into a separate tank as I don’t want to sell them. Right now that tank has 3 males and a single female that look perfect in every way. If I’m not mistaken, they are all over 12 months old.
Fingers crossed that your fish will all turn out OK.
Dennis
Congratulations on your new fish! Sorry to hear that the one isn’t doing so well though.
I detest the use of chemicals in my tanks and treat most of my fish ailments with water changes and live foods.
If it wasn’t for the part about, “the back end droops as she swims making it hard for her to swim”, I say she just needed to re-coupe from the stress of moving.
Dennis
Until you get used to what they look like, they can be very hard to see.
When using the egg trap, I usually remove the trap every couple of days and take the lid off to inspect for eggs. If you use a bright light from above and set the trap on a dark surface, it will help to see the eggs. They are very small and when first laid they are almost clear… very hard to see.
I have had several people tell me that they thought their CPD’s weren’t producing any eggs, but then they neglected the traps for several days and found fry when cleaning out the traps…
Are you feeding your adults any live foods?
Dennis
Hi tomwid, welcome to the forum!
I start fry on 0-50 and then feed all sizes up to the 200-300 to the adult fish.
I feed the 300-500 to fish a bit larger than CPD’s… Danio choprae, Danio aesculapii, etc.
I feed the 500-800 to my biggest Danios like Danio kyathit, Danio dangila, etc.
Dennis
That’s great news indeed! Some times it’s a bit rough getting started, but after that it should be smooth sailing.
Keep us posted… please.
Dennis
