Help A couple questions regarding setting up a new tank

JowwdTheRat

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So currently, I am thinking about setting up a 20 gallon freshwater tank with serpae tetras. I already have a sponge filter that has been sitting in an established tank for a while now (a month or two). I was planning on setting up the tank with this sponge filter. I heard you can instant-cycle tanks this way, but I would like to know whether or not this is true. I also have a mechanical filter called the Aqueon Penguin (at least I think that is what it is called). Would I be able to cycle this mechanical filter with the established sponge filter? Some people say to squeeze the sponge filter into the tank water to help seed other new filters. Should I do that? Also, how many fish should I start out with (if the tank is ready for fish). Would two or three serpae tetras to start be too little or too much for the filters to handle?
 
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JowwdTheRat

JowwdTheRat

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mattgirl said:
This is something I wrote up for situations like this. Hopefully it will answer all your questions but if you need clarification please just ask.
Oh, thank you. I still have a few questions. Could I safely gravel vacuum my established tank as usual after moving the extra sponge filter into the new tank, or would that crash or harm my old tank. Should I wait a week and just do a water change for now?
 

mattgirl

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JowwdTheRat said:
Oh, thank you. I still have a few questions. Could I safely gravel vacuum my established tank as usual after moving the extra sponge filter into the new tank, or would that crash or harm my old tank. Should I wait a week and just do a water change for now?
Just to be on the safe side I think I would just do a water change this week. Vacuuming the gravel probably won't hurt anything. Bacteria clings to everything in the tank including the gravel. Vacuuming it might remove some but I don't think it would remove enough to cause a problem. I do believe in being safe not sorry though.
 

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