cycling question (long confusing story)

jamiya0727

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Oct 16, 2007
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Right now I have 3 tanks - a 6 gallon that has been running for about 9 months and is doing great, a little 2 gallon critter keeper that is housing baby mystery snails (and for a while a few danio fry) which has yet to cycle and the ammonia is running around 2ppm (daily 50% water changes brings it down to 1ppm), and a brand new 12 gallon tank.

I am setting up the new 12 gallon tank. I have gravel from the established 6 gallon tank hanging in a media bag near the filter outlet. I also used Tetra Safe Start, and now the water is cloudy so I'm hoping that means there is a bacterial bloom.

I originally put two mystery snails in the tank. They are babies - a little bigger than pea-sized. Since they were in the small temporary tank that has yet to cycle and the ammonia was getting out of hand, I figured the bigger tank would be better even if it has to cycle.

But the snails did not do well. They seemed fine for about 24 hours, but then after the first day they stopped moving, so I took them out and put them back in their old holding tank with the rest of the babies. One recovered - the other has not.

In the meantime, three danio fry that appeared in my main tank were also being held in the little holding tank and were doing great, until Monday morning when I went to do the daily 50% water change and all but one was dead! So I took the lone survivor (probably about 8 weeks old), who wasn't looking so good, and put him in the now empty 12 gallon tank. He recovered at least somewhat and is still swimming around in there (two days later).

So here's the dilemma (finally). The 12 gallon now has one tiny fish in it. The ammonia is reading around 0.2ppm. Will that tiny fish produce enough ammonia to cycle the tank by himself? Should I buy a couple guppies to help him (the plan for that tank is guppies and snails)? My daughter doesn't want to do it that way - we lost fish the last time we tried to cycle with fish, but back then I had no idea what I was doing. I could add some ammonia, but it seems cruel to deliberately add ammonia to the tank when it has a fish in it.

I could put more snails in (I have a bunch of babies still), but I have no idea why the first ones didn't do well. I could put the tiny fish back in the baby snail holding tank and hope he survives the ammonia. Or I could put him in my healthy tank, but that's only a 6-gallon tank and it already has 4 danios, a small catfish, and an adult mystery snail in it - I'm worried it will be too much, although I guess I could take him back out when he gets bigger.

So at this point, I am just confused! Any advice?
 
wow...you didnt lie when you said it was confusing.

first pointer - brigs (and most any snails really) (and all fish) dont tolerate ammonia at all...you should keep your ammonia at 0PPM

Secondly, i am assuming your 6Gal tank is cycled. -- Take your filter media from your 6 gallon tank....cut it in 1/2 and place 1/2 of it in your 12 gallon and let the filter run. Combining the rocks and the filter media that should have that tank cycled relatively quickly(instantly maybe)

Third - do the same for your critter keeper i guess.

hopefully that takes care of most of your problems with cycling. you will probably ahve to do a bunch of water changes still but it should lessen their necessity.

good luck!
 
I can't cut the filter media. They are Marineland Eclipse tanks, but different sizes. They have a carbon filter (big plastic thing full of carbon with polyfiber on top) and a Bio-wheel. That's why I hung the gravel in the tank instead.

With only one little fish in the tank, will there be enough ammonia to feed the bacteria, or will the tank never cycle unless I either put more fish in, or take the baby fish out and add ammonia myself?
 
The tank will cycle. The only problem is that it will only cycle for 1 small fish. Adding any more fish will cause a mini-cycle. However, it will be quicker. Your fish is probably better off alone in that tank right now, until it cycles, and then slowly add fish, making sure you always keep ammonia and nitrItes as low as possible.
 
Ammonia is at 0.2ppm and I believe nitrites are still 0 - I will check tonight when I get home. Should I do a 10% water change every couple days, or...?

When it cycles, I plan to buy two guppies and wait for it to settle, then 2-3 more guppies. Does this sound like a good plan?

I am not sure what to do with the danio, assuming it survives. If I put a school of danios in with the guppies, there will be no room for snails!

Speaking of snails, I don't have any idea what happened with the two I put in the tank. I don't know if I should try again or not. I guess after it cycles I could put a couple snails in, before I buy the guppies.
 
You should do at least a 10% w/c (prolly more like 50) EVERY day, to make sure ammo stays as low as possible.

A couple guppies or snails at a time until stable again sounds like exactly what you need to do...
 
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