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post #1 of 7 (permalink) Old 06-17-2008, 11:24 PM Thread Starter
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cycling issues

I'm cycling two new tanks. first ones. a 6g and a 16g. They both had spikes on friday, so saturday I went out and bought some chems (aquafin Ph decrease, NovAqua water conditioner, and Seachem Prime for the ammonia, nitrite and nitrate), did a water change, vacuum, and added in the stuff to drop ammonia, nitrite and nitrate. I checked them today to give them time to get the stuff working and today they are still bad. Wondering what to do.

6g stats:
PH 7.6
nitrate ~5
ammonia 0
nitrite ~ 1.0

16g stats:
PH 8.0
nitrate ~10
ammonia 4.0
nitrite ~1.0


I've cleaned out anything dead (the spike has killed 4 fish total) and there are a good amount of plants in there to suck the stuff up (I'm adding more this week by chance that'll help.)

both are low light running 12 hours.

so do I do another water change/vacuum and add in more of the chems? or should I give it a few more days and just add more chems when I add in the new plants tomorrow or thursday?
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post #2 of 7 (permalink) Old 06-18-2008, 12:38 AM
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How long have they been set up?

What fauna do you have in these tanks?

You mention you have a good amount of plants. Can you be a bit more specific (types, numbers)?

Mike


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Last edited by mpodolan; 06-18-2008 at 12:49 AM. Reason: re-read and answered my own question
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post #3 of 7 (permalink) Old 06-18-2008, 12:42 AM
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Oh, you should avoid using chems to alter ph. There are some good threads here that discuss this issue as well

Mike


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post #4 of 7 (permalink) Old 06-18-2008, 02:23 AM Thread Starter
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been up for 1 1/2 weeks, 6g has 4 bunches of hornwort all growing incredibly fast and some smaller plants that I can't remember the name of. 16g has an amazon sword and also 4 bunchs of hornwort all growing fast. think it could be that there are too little plants? 6 small fish in the 16g and now only 3 in the 6g.
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post #5 of 7 (permalink) Old 06-18-2008, 02:33 AM
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Don't use chemicals to remove the ammonia/nitrite. Water changes only, but if no fish, just leave it be. It could take up to 6 weeks.

Further, prime takes out chlorine/chloramines, so why are you using novaqua?

IF for "skin" products, don't. It is a waste. I agree with mp about the ph adjusters too.
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post #6 of 7 (permalink) Old 06-18-2008, 02:39 AM
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Just curious, are you new to aquariums in general, or just to planted tanks? Understanding the nitrogen cycle is important for anyone in this hobby. There are a number of ways to "cycle" a tank safely. I prefer the silent cycle (adding enough plants to prevent any dangerous amount of ammonia/nitrite), but bio-spira, fishless cycling, using seeded filter material, etc. can all be effective.

It sounds like you are trying to silently cycle your tanks by adding fast-growing plants. You can read more about this at Rex's site rexgrigg.com

I would add more fast growers (at least to the 16g) to help this process. Water changes will help get the levels to a safer range until you can get more plants.

Mike


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post #7 of 7 (permalink) Old 06-18-2008, 03:12 AM Thread Starter
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kk. thanks guys.
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