False Water test Readings

**mrbaronisback** · 12-24-2006, 11:36 PM

Are there other things that can cause false test readings other than Ammo-Lock? I've read somewhere that using products from different companies can sometimes cause false readings... such as Tetra water conditioners with Aquarium Pharmaceuticals testing kits.

Does anyone know anything about this?

**Fishguy2727** · 12-25-2006, 12:42 AM

Not that I know of. As far as I know the only way to get false readings (besides expired reagents) is with certain ammonia binding chemicals that still allow the ammonia to be counted by the reagent. I think Amquel+ will lock up ammonia but not allow it to be read, but I 'm not sure.

**Lady Hobbs** · 12-25-2006, 03:39 AM

I used Water Clarifier from Tetra once and my pH went from 7.6 down to 5.0. I don't think it was the pH at all but the Clarifier giving me a false reading. Then I poured a big glass of water, added one drop and immediately got the same results. It took me several weeks to get my aquarium to give the correct readings again. Just a wee drop of that stuff and you get some goofy results.

That's the only products I've used that did that.

**Fishguy2727** · 12-25-2006, 01:58 PM

You should email them and see if they have heard of that before or have an explanation of the cause.

**Lady Hobbs** · 12-29-2006, 04:45 PM

Hi rep.....Just saw your post here. I did email them and got no response at all. I still see it advertised everywhere with "will not change pH". ppttfff