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for those that use prawn in cycling of tank
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ah_hup
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Joined: 22 Oct 2006

PostPosted: 2006.12.20(Wed)5:52    Post subject: for those that use prawn in cycling of tank Reply with quote

is it normal when the prawn start to decompose... some sort of cotton layer will come out from the prawn... then the prawn meat looked as if it's cooked like that.. cause mine turned red...
and those cotton layer flowing around the water and sticking to some of my decor and driftwoods... will they be gotten rid of by bacteria???

pls enlighten me!! urgent! thanks
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Bob
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Joined: 16 Jun 2006
Location: UK

PostPosted: 2006.12.20(Wed)6:01    Post subject: Reply with quote

I would say it is perfectly normal, you have a dead thing in water, it is decomposing, being eaten by bacteria, fungus and generally rotting (That's why we normaly bury or burn dead things).

I would have put the prawns inside some mesh bag of some sort.

Don't worry about it.

Just clean the tank up when you do your after cycled water change.

Bob
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unissuh
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Joined: 29 Mar 2005
Location: Melbourne, Australia

PostPosted: 2006.12.20(Wed)7:57    Post subject: Reply with quote

It's fine. Perfectly normal in my experience to have the prawn changing color and getting fungal growth.

The gunk will either break down totally by itself, or get caught in the filter where you can remove it. You can remove it manually if the cycle has completed but you still have rotting prawn in the tank.
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msta
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Joined: 04 Dec 2006
Location: New Zealand

PostPosted: 2006.12.20(Wed)11:57    Post subject: Reply with quote

hey, quick question for you

does the prawn stink, and does the room the tank is in stink??

(want to put one in my cycling tank for a ammonia source while I'm on holiday for 10 days and can not add liquid stuff manually, but I don't want a stinking home either)

thanks
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haname
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Joined: 11 Jun 2003
Location: Phoenix, Arizona USA

PostPosted: 2006.12.20(Wed)14:09    Post subject: Reply with quote

A cooked prawn will not cause an odor the way uncooked will. If you get a raw one, just boil it for a minute or two or microwave it until it turns pink and opaque before putting it in the tank.
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ah_hup
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Joined: 22 Oct 2006

PostPosted: 2006.12.24(Sun)0:26    Post subject: Reply with quote

hmm I don't know why.. but I just checked my seachem ammonia alert and it says SAFE, before that it was TOXIC. I was quite surprised as I only cycle my tank for 6 days.. and the ammonia so fast got broken down?? so I did an ammonia test and true enough the reading is 0.25ppm.. at first it was 2.0 ppm.
I also did a test on nitrate and the reading was very high! 100mg/l
how do I lower it?
the pH also did not change from the start of cycle till now and still remain at 8

so should I removed those prawns now??

I was thinking maybe it's because I use the product Seachem STABILITY for a consecutive 3 days thats why nitrate came out so fast. anybody can enlighten me? I'm very mixed up on what to do next now.
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FiftyCalibre
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Joined: 09 Mar 2006
Location: Sydney

PostPosted: 2006.12.24(Sun)1:51    Post subject: Reply with quote

Lower nitrates with water changes
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ah_hup
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Joined: 22 Oct 2006

PostPosted: 2006.12.24(Sun)6:31    Post subject: Reply with quote

so is my tank considered cycled since nitrates starts appearing and ammonia level dropping??
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ah_hup
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Joined: 22 Oct 2006

PostPosted: 2006.12.25(Mon)6:10    Post subject: Reply with quote

any help?
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FiftyCalibre
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Joined: 09 Mar 2006
Location: Sydney

PostPosted: 2006.12.25(Mon)7:41    Post subject: Reply with quote

When nitrites and ammonia are both 0, then I consider the tank cycled
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