Just curious: If you had a 230g tank, how many fish would you put in it?

[kien]

Originally Posted by Delphinus

What do you measure it with? Next time I come over I'd like to bring my NO3 probe and we can try some measurements with it. Reason I say that is I find it's a bit startling how differently my probe reads a nitrate level than what my test kits read out at. For example, I get about 5ppm NO3 readings using both Elos and Salifert .. which suggested to me that maybe my NO3 was around 5ppm, but when I use the probe it tells a much different story (30ppm).

So I'm not disputing your 5ppm, it may well be that, but I'm just curious what readings I'd get on different water.

I'd love to use your probe!

I find the test kits I use are useless as I never get a colour reading in them which suggest a low nitrate but I know I have nitrates.