bn fry probs

[nemo1981]

hey,
i never used to have much trouble with my bn fry, but lately i've been losing whole batches when they're a couple of weeks old.
I had 2 batches about 2 weeks old (approx 70) and i cleaned the tank sponge filter yesterday (in tank water in a bucket) and today every single one was dead.

I've lost my last few batches, not in the same way as this lot, but I'm wondering what's going wrong.

It's been a while now since I've actually bothered with them but now they're breeding well again I am keen to actually get a good amount grown up.

Any thoughts appreciated. :wink:

[nem7902]

hmm i have lost bn fry before but never that many...r there just bn in the tank??..
do u ahve any cc in the bottom?? any food??
wat r u feeding them??
hmm try not cleaning the sponge filters and just do a small water chane next time ...i dont no if this is any help  :oops:
lol

cheers luke!!!

[Otorix]

I couple of months ago i lost an entire batch of fry as well. I only do minor water changes but don't use a chlorine neutraliser. I have never had problems this way with losing fish. I assumed in my case though that there was a very low level of overall chlorine in tank that killed the fry, but all other fish were able to tolerate it. They all died within 4 hours of the water change.

[kiya4]

If you are in the drought areas including brisbane and the coasts then the water is the problem. The council has added double chlorine and chloramine into the water due to the bacteria etc.

You need to double your chlorine dosage and see what happens. I also use products like Cycle, Stress Coat/Zyme etc. I find that these products also seem to help when the water is bad. I use whatever I ended up buying on special. If you have the money you can buy distilled water if the tank is fairly small and add half distilled water/ half tap water. The distilled water is fairly pure of chemicals and very soft.

Anyway let me know how you go. I cant seem to stop mine from breeding at present. Good success rate with about 150 in each batch so I must be doing something right or just having good luck.

[nemo1981]

ok, the tank is a 2x2x18 bare bottom, only fish in there are 3 lg male bn 4 female bn.

The babies died after I just lightly cleaned the filter sponge. (This was done in a bucket with a couple of litres of water that came from the tank)
I didn't do a water change until after I found them dead.

It's strange, and a bit annoying as they just started to breed well again :roll:

Anyway thanks for the help.

[bnalbino]

Hmmm very interesting

I used to live at Beerwah and the exact same thing happened to me in total I lost nearly 500 fry at the 2 week old stage, no water change, no other fish in the tank bar the fry, fed the same as always, I am hoping things are different now I have moved???

would love to know the reason!!! :roll:  :roll:  :roll:

[Savage_roo]

I think you will find if you are useing tap water there is ya problem

try and get a tub or something treat your water and let it stand a few day b4 u use it
and see how u go

andrew

[bnalbino]

[quote:61a16c7dbd="Savage_roo"]I think you will find if you are useing tap water there is ya problem

try and get a tub or something treat your water and let it stand a few day b4 u use it
and see how u go

andrew[/quote:61a16c7dbd]

ok then I assume tank water would be an ideal substitute then??? 8O  8O

[Tabbycat]

Rain water is all i ever use in my tanks. I have big tubs in my yard to collect it is.

[bnalbino]

ok thanks for that Tab, will start using the tank water :D  :D  :D

[nemo1981]

wow, nice revival.

i sold those guys to my father in law wish i had them still :(

[Cory Fan]

Thanks for all the tips :D  :D

My first batch of ablino and common were died after about 2 weeks. :cry:  :cry:

Will install a rain water tank soon.

Cheers
 :lol:  :lol:

[bnalbino]

well mine are back to laying again after a break so it will be interesting if I can raise them now I am using tank water :D  :D  :D

not many eggs in the bunch but a nice start all the same 8)  8)

[Cory Fan]

how often will albino spawn?? mine seem to have a break for a long time already  :(  :(

[Alan Caboolture]

For the two years 1980/1981 I kept close records of bristle nose breeding behaviour.  At this point I had kept B.N. since 1968, but my first ever spawn was in 1971.

My first ever spawn produced 7 young bristles, occured in a 5'x18"x18" planted tank, under a flat rock.    Working totally in the dark in those days, no one was telling anyone anything if they managed to breed anything.   NO internet, no forums, and bugger all info at the clubs.

Females spawned every 36 to 45 days, depended on the individual, but 40 days was the average for the 14 breeding females I was recording..

I didn't count eggs, but counted fry 4 weeks from free swimming.  Minimum was 27, maximum we 72 (bloody strange that).  

The average spawn survival over 272 spawns for two years was 48 babies.

Alan.

 :?: what the hell is the significance of '2' and '7' with bristle nose ????? :?

P.S.  I haven't changed anything in my fish keeping but the results of late do not add up !!!!!.....The only thing I can put it down to is the water supply.