Nitrate

[Fake_widow]

Hi all. I have recently got back from a holiday from my house near a freshwater river. The stones thee are beautiful and i decided to bring a few large ones home for my tropical tank. I put them in earlier today and just then ive tested my stats.

PH - 7.0
Nitrate - 10
Nitrite - 0
Amonia - 0

Just the other week i tested and had virtually 0 nitrates. Are the stones poisoning my tank. The were washed thoroughly , im just worried for my fish.

2 - Silverdollars
2 - shovelnose
5 - blackwidow tetra

 

[Miss Wiggle]

doubtfull, you should have a reading of nitrate. your fish produce ammonia, which is converted to nitrite, then nitrate. Nitrate is the least harmful of these 3 so that's what your filter converts them to. Nitrate is then removed by regular water changes.

anything under 40ppm is fine, some will say even higher is OK, however 40 is the generally accepted 'safe' mark.

a reading of 0 nitrate is actually more worrying to me than 10, how long has the tank been set up? the readings last week, was that just after a water change? have you done one between then and this reading.

 

[BigIan]

a nitrate reading of 10 is nothing to worry about,

the rocks won`t be adding to nitrate unless there was something on them that is now dieing.

Do a water change and keep your eye on the nitrates, they will creap up every now and a again, WICH IS WHY YOU DO REGULAR WATER CHANGES