Fry dying. What am I doing wrong? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 8 Old 04-20-2010, 12:50 AM Thread Starter
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Unhappy Fry dying. What am I doing wrong?

I have a 55 gal tank with 12 mollies, 6 platies, 8 tetras, and 1 sword. I have been finding babies in the tank so I moved them into a net. When the count reached about 40 (all were doing very well) I moved them into their own 5 gal. tank with a bio filter. I used water from the 55 gal tank. All was going well through the weekend, but when I came home from work tonight most were dead with the majority stuck in the filter. I have about a dozen left. They are the oldest of the lot. I moved them back into the net in the large tank. Any help or suggestions would be greatly appreciated.
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post #2 of 8 Old 04-20-2010, 02:10 PM
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Maybe you need a sponge filter or something less powerful. The tank is not cycled most likely, the 5g. So you NEED major water changes, or at least add some sponge or w/e from the 55 gallon to the 5g's filter. The 5 gallon may also not have a heater and may have been too cold or something.

Don't know! but you will likely want a less powerful filter, preferably a sponge type, as they cant get sucked into this, or cover the intake of the filter you currently have (they COULD potentially still get stuck to the intake and die as well though).

Goodluck with the babies!

"He situates himself in relation to time. He takes his place in it. He admits that he stands at a certain point on a curve that he acknowledges having to travel to its end. He belongs to time, and by the horror that seizes him, he recognizes his worst enemy. Tomorrow, he was longing for tomorrow, whereas everything in him ought to reject it."
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post #3 of 8 Old 04-20-2010, 05:41 PM Thread Starter
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I have a heater in it, and the water is straight from the 55 gal. I have lost a few more babies through the night, and the remaining don't look too good.I am thinking something probably went wrong with the water. I am now re-thinking just leaving new fry loose in large tank. I will add more places for them to hide. Your info is very helpful Austin. Thank you so much!
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post #4 of 8 Old 05-10-2010, 06:47 AM
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they also grow faster in the large tank i found.

the types fish that i have r?
mollies 4 normal 1 sailfin
platies 4
guppies lots
swordtails 8 normal 1 bouble swordtail
bristle nose catfish-5 albino 5 normal
white clouds
2 albino and 1 bronze corydoras
Zebra danios 4 normal 1spotted 1 albino longfin
1 Betta red/blue/purple
bristle nose fry
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post #5 of 8 Old 06-11-2010, 03:35 AM
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maybe if you are mixing the ages they are eating each other.
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post #6 of 8 Old 06-11-2010, 04:31 AM
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Quote:
Originally Posted by redpup View Post
I have a heater in it, and the water is straight from the 55 gal. I have lost a few more babies through the night, and the remaining don't look too good.I am thinking something probably went wrong with the water. I am now re-thinking just leaving new fry loose in large tank. I will add more places for them to hide. Your info is very helpful Austin. Thank you so much!

When we say a tank is cycled,it is not the tank or the water, but rather the filter that we wait on to develop a healthy bacterial colony that works to process ammonia created by the fish,and fish foods. Simply moving water from a cycled tank will not mean the new tank is cycled.
What you might consider is placing a small sponge filter in your large tank and let it run 24 /7. Then when you wish to move fish to breeder tank ,or grow out tank,, you would simply need to move the sponge filter from the main tank to the grow out tank and this would produce the biofilter for the tank with fry.
Could also place a small hang on the back filter on your large tank and let it run 24 /7 and when fry tank is needed,simply move the small filter from the large tank to the small tank.
Keep in mind that for sponge filter or small hang on the back filter to be effective,, they will need to run in the cycled aquarium for minimum of four weeks.Could also simply take some filter material from the cycled filter on your large tank and stuff some of the material in a new filter when you place it on the fry tank.
In any event,, water from a cycled aquarium does not provide much in the way of bacteria and it is the filter where the majority of the good bacteria is found.

The most important medication in your fish medicine cabinet is.. Clean water.

Last edited by 1077; 06-11-2010 at 04:38 AM.
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post #7 of 8 Old 06-11-2010, 05:59 AM
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how old were the babies when they started dying (i apologize if i missed this), and were you feeding them?

May the flow be with you
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post #8 of 8 Old 06-11-2010, 04:27 PM
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Unhappy

Quote:
Originally Posted by ferszty View Post
they also grow faster in the large tank i found.
i agree 100% with this.....good luck with the ones you have left...if you think youve got it bad.....i had 57 guppy fry in there own CYCLED, FILTERED, HEATED TANK and they all slowly died with in 2 week...i have 1 left that is aprox 3-4 month old and hasnt grown at all :(...i think i mite have to "remove" it :(

190L Tropical Aquarium

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5 Pristella Tetra
2 Bristlenose Plecs
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