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Old 07-20-2006, 05:30 PM   #1
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toxic gasses???

i've just been reading a post in the unhealthy fish forum and toxic gases where mentioned. i was wondering what are they and what can cause them. is this YET ANOTHER thing that i have to worry about?
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Old 07-20-2006, 05:53 PM   #2
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Well toxic gases could be your regular high amonia, nitrite, nitrate, or someone may have been reffering to toxic gases that can build up under a sand substrate if not aerated.

What was the thread you were reading so we can explain that thread more specifically?
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Old 07-20-2006, 06:17 PM   #3
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Normally it is gas buildup in the substrate. Stir your substrate regularly through gravel vacs or MTS and you'll be fine.
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Old 07-20-2006, 09:04 PM   #4
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Agreed. Its from dead (anaerobic) spots in your sand (gravel doesn't usually have this problem) that form hydrogen sulfide gas. Not really all that common but does happen.

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