A good fish for a cycling tank

waltmillham

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I'm still learning & have a lot to learn, but it wasn't long ago at all that I had no clue about the importance of water chemistry or that new tanks need to cycle & how long that can take. I know Zebra Danios are considered to be fish that can make it through the cycle & survive, but my first aquarium was a MinI Bows 5 gallon & it had a Betta in there right from the get go. The first time I tested the water, it was nasty! Everything was high........especially nitrite & nitrate & the Betta was just fine. That fish could probably live in a septic tank. The Betta is stilll in there & doing just fine. Ofcourse, even that tank has good water now, but it sure didn't before....So correct me if I'm wrong, but I would suggest a Betta for a cycling tank.
 

Neville

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I think people prefer zebra danios because u can keep several of them in a tank but u can keep only one betta in a tank or else they will fight to death. think about a huge tank 75, 150 or 300 gallon....I think one betta is not enough to cycle these tanks.
 

sbrown64

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I remember from my first tank that I purchased 5 glowlight tetras the day after filling up the tank with water. THey thrived and are still very happy in my tank 6 months later. When I setup a 2nd tank I used a pair of convict cichlids, the levels wereso high but these fish are real little beasties and as tough as nails.

Regards

Stephen
 

JMatt1983

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first off, it is definitely not suggested that you cycle your tank with fish, there are faster and better ways to cycle your tank, usiing filter media from a cycled tank is one of the best, I cycled my 20G tank in 10days with that method, with fish, your tankwill take months to cycle, due to the daily water changes required, I made that mistake with my 10G, it took 3 and half months to cycle with fish, if you're looking for the instant cycle, use bio-spira, using ammonia also works well, same with filter media, or gravel from a cycled tank
 

Tazmiche

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i'd definitely say don't cycle with fish, it is cruel, just be patient as I was with first tank, just used fish food. Second tank was easy as used filter material from first tank. So nasty watching a stressed fish die no matter how small!
 

Neville

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yeah, I agree, as i'm cycling my new 75 gallon tank now without any fish. I dunno, may be it will take a month or more to complete the cycle....
 

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