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February 17th, 2009
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| | Fish Bum
| filter issue in fry tank
I have around 40 sword tail fry in a 5 gallon plastic critter keeper thing...I know I'm terrible at describing things. I will attach pictures. I set this tank up about 2 days ago. The tank water was taken from the parents tank that the breeder net that they were in was located. The base from the discard-a-filter was used before and small heater came out of a previous cycled tank...I figured that was ok to do since the water came from a cycled tank. If I'm wrong or if anyone has another cheap idea for setting up a fry tank I'm all ears, I'm just on a limited budget and space for anymore tanks besides a 5 gallon. So i have been feeding finely ground up flake food and baby bites. Am I just feeding to much or is my idea of a filtering system for fry just sucking. I remember having a small tank set up like this before and don't remember the water looking so dirty. So any other filter options would be great or if mine should be fine and I'm just over reacting, because I feel like an overprotective mama fish, please let me know.
Comments, suggestions, and criticism welcome I want to have a decent set up for breeding sword tails and I am kind of just winging it right now. | 
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February 17th, 2009
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| | Fish Master
| I think the best thing to do is either buy or make a sponge filter and run it in your larger tank, that way it will be completely cycled when you're ready to put it in the fry tank  sponge filters are also the least likely to do any harm to any of the fry | |
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February 17th, 2009
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| | Fish Bum
| is the filter i have in the tank now a sponge filter or am i confused on what a sponge filter is....which is probably more likely then anything else | |
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February 17th, 2009
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| | Fish Bum
| basically the top part has carbon in it and looks like a sponge below it. the air tube attaches to it and the bubbles come out in the space above the carbon. the green part stays and u can just pop the carbon and the white part out and replace it with another | |
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February 17th, 2009
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| | Fish Master
| that's interesting, i've never seen one like that before but it looks like it should be fine | |
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February 18th, 2009
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| | Fish Keeper
| that looks like one of the little Boyu submersible filters, great for a little tank like that and not too strong for the fry.
With the water being cloudy its probably a bacteria bloom, as the water you transferred from the old tank will have had very little of the 'good' bacteria in it, but the fry net will have as the bacteria grow on the surfaces of the plants, decorations and gravel in the tank and not in the water.
Its not that big an problem if you do 10-20% water changes every other day with a water treatment, I usually add stresscoat+ when I do water changes on the Fry tank as well. | |
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February 19th, 2009
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| | Fish Bum
| oh ok yeah I have taken to just sucking out the stuff on the bottom every other day then adding water back in with start right. That makes sense though I didn't think about the bacteria. Do you think I should add some gravel, the only reason i didn't is because I heard it was easier to take care of a fry tank without anything else in it. | |
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February 19th, 2009
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| | Fish Keeper
| I am not sure about the bare bottom, the pic below is my fry tank which currently has 100 molly and guppy fry in it.
The fry like to hide in the plants and the substrate, and the plants themselves generate infusoria that the fry eat.
Mind you changing 20% of that every other day is a task in its self lol 
Last edited by Jonah; February 19th, 2009 at 07:45 PM.
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February 19th, 2009
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| | Fish Bum
| thanks for sharing your picture I think I will be adding some gravel and plants. the every other day water changes seem to have really helped with the cloudy water
Thanks again. | |
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February 22nd, 2009
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| | Fish Keeper
| Personally would wait until frys are little larger since as hatchlings, should overfeed after yolk sac is gone. W/O gravel it is much easier to suck out leftover food using air line tubing.
If already added gravel, leave it as is. | |
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