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Cycle from hell!! Please help!

This is a discussion on Cycle from hell!! Please help! within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Originally Posted by Byron As mentioned in the profile, this is a shoaling fish, so they are best in small groups. Length is more ...

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Cycle from hell!! Please help!
Old 08-19-2012, 04:49 PM   #11
 
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Originally Posted by Byron View Post
As mentioned in the profile, this is a shoaling fish, so they are best in small groups. Length is more important that volume, but in less than 4 feet I wouldn't either. A pair is fine if it is a mated pair (not all males accept all females, and vice-versa) but as these would spawn regularly this would make life in the tank difficult for the other fish. Then there is the issue of linear tetra being eaten by angelfish. Cardinals are linear, and many have had these disappear into angels. The disk-shaped tetra such as those in the Rosy clade of Hyphessobrycon (avoiding the fin-nippers) or the medium rasbora are better tankmates.
Yeah, the tank is about 40" long, so not quite four feet. I was under the impression that cardinals are okay since a lot of people seem to keep them together with no issues because of their size? A lot of people seem to keep rummynose with angels as well? Yes, when I mention pair, I meant a genuine mated pair... I have also been told I could grow out a group of 5 or 6 juveniles, and after a pair form, sell the other ones? What do you think about that theory?

Also, do you have any advice as to what I was asking about my cycle, as to whether clearing of 2ppm of ammonia within 15 -18 hours is okay, or if it really is true that I am not cycled until I can clear 2ppm of ammonia within 10-12 hours? And I mean clearing the ammonia within that amount of time for a week straight before adding fish, just to be sure.
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Old 08-19-2012, 05:24 PM   #12
 
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Originally Posted by gregedinburgh View Post
Yeah, the tank is about 40" long, so not quite four feet. I was under the impression that cardinals are okay since a lot of people seem to keep them together with no issues because of their size? A lot of people seem to keep rummynose with angels as well? Yes, when I mention pair, I meant a genuine mated pair... I have also been told I could grow out a group of 5 or 6 juveniles, and after a pair form, sell the other ones? What do you think about that theory?

Also, do you have any advice as to what I was asking about my cycle, as to whether clearing of 2ppm of ammonia within 15 -18 hours is okay, or if it really is true that I am not cycled until I can clear 2ppm of ammonia within 10-12 hours? And I mean clearing the ammonia within that amount of time for a week straight before adding fish, just to be sure.
Yes, the best way to get a mated pair is as you suggest, if tank space is sufficient. Though I can't say if you would be able to sell (or give away) the others, that depends on where you are and other aquarists.

Angelfish are predatory by nature, and linear fish tend to be targeted because they are easier to eat. There are those who may keep such fish together, but there are many who can't and won't. As I mentioned recently in another thread, sometimes letting the tetra grow to their mature size before adding the juvenile angels can offset this. We can't change nature, though.

On the ammonia, i have not read of any timeline for this. Nitrosomonas bacteria require approximately 9 hours to divide if ammon ia is present beyond their numbers. Various factors affect this. You might find some background here:
http://www.tropicalfishkeeping.com/f...quarium-74891/

Last edited by Byron; 08-19-2012 at 05:28 PM..
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