Do I have magic water?

sumthin fishy

I eat spam
Aug 22, 2005
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Soooo, I have 3 tanks, a 2.5 hex with a CT betta and ramshorns, a 10 with guppies, a DP an otto and MTS, and a 55 with 4 hatchets, 10 cardinals, 10 serpaes, 6 golden 4line cats, 2 rams and a pair of cacatoos. All these tanks seem pretty well stocked to me.

My nitrates are suspiciously low. Usually, at weekly changes, they are at 10-20. I use a liquid test kit, but have been compairing it to a strip kit for a few months.(In a past thread, I posted the observation that the strips usually read higher than the liquids, causing the thought that I would rather get a high reading, than one that was too low.)

The 10 gallon used to get to about 30-40 ppm at the old place, then got lower and lower in the new house(this tank was also planted after I moved here, so not much supprise there) The 55 was set up at the new house, and slowly stocked to its current level, as was the 2.5 :rolleyes:. Due to recent work issues, I was unable to be home to do water changes a few weekend(not in a row). Even after 2 weeks of no water changes, liquid kits had tested lowwer than 20ppm and strips approxamatly 30ppm(between the 20 and 40 colors). After 3 of these situations(2 weeks without WCs over a 3 month period), a trip to the LFS confirmed a nitrate level of 20-30 ppm by thier tests. What are some of the other members stocking levels and nitrate levels after a week? Id like to know why they seem to be so low after so long without Wcs.
 
lots of bio filtration :huh:

you have an undergravel filter? this could cause this to happen, as they are great for biofiltration...
 
your supposed to have 0ppm of nitrates. mine are always at 0 unless its cycling or had a nitrate spike. get that lowered asap with a 40% waterchange
 
nooo nitItes are the bad stuff, nitrates are fine, they just mean that the water is getting old when they go up...
 
Just a penguin 330 on the 55, a whisper 10 on the 10, and an ugf on the 2.5. All bear simmilar results(the 2.5 betta actually a scosh lower).
Thanks for the correction above as well lobo, to elaborate on it, nitrates being the end product of the nitrification process (breaking down ammonia) I would fear an unplanted tank with 0 nitrate.
 
Lobo. said:
nooo nitItes are the bad stuff, nitrates are fine, they just mean that the water is getting old when they go up...
im guessing you mean nitrites. and nitrates are deadly. mabye not to all fish i know they are deadly to rays. mabye not to other fish tho
 
you got that backwards bud. ammonia(nh3-n)-->nitrItes(no2)-->nitrates(no3). Nitrates are actually not that harmul to fish at all in the numbers most folks here do thier changes at, its the pheramones and other unmeasurable chemicals in the water (which build up at a rate simmilar to nitrates) that we do our water changes for. Not suguesting that nitrates are ok, but 20-40ppm is not anything to worry about.

http://faq.thekrib.com/begin-cycling.html
 
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Yeah kody, you got it backwards. And biofilters don't lower nitrates, (unless you have a special anarobic biofilter set up).

How old is your test kit? You said you tested lower than 20, but the LFS tested 20-30. Did you old place have nitrates in the tap water and this house doesn't? Have you been feeding less often since you have been so busy? I have read at a few sites that nitrate tests aren't very accurate. My tank is planted now, but I think before I planted it I was getting around 20-30 ppm of nitrates after a week, doing 30-40% water changes.
 
Well, The LFS had 20-30, my liquid 10-20 and my strips somewhere between 20 and 40. I guess I should have found out what they used at the LFS :duh: I dont think feeding is the cause, I am still home to sleep shower and feed them, just not really enough time to do a WC. That is a possibility though. I really never tested my tap water back at the other house, but this one seems to read 0-10. Oh well, guess I shouldnt complain.
 
My nitrates tend to stay at the low end as well, even if I skip a few water changes and even if the tank has a heavy bio load. I believe it has to do with the water quality going in to the tank as well as other factors going on like filtration, etc.


And kody, nitrates in salt water tanks are bad. For freshwater tanks, they are okay. ;)
 
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