Salifert's Oxygen Test

[dilbert]

Hi all,

just for a laugh I bought Salifert's oxygen test and the funny thing is that it always shows zero oxygen.

I measured it twice for the marine tank and once for the brackish tank.

The marine tank has some visible surface agitation from two powerheads opposite to each other.

The brackish has two canister filters and an airstone and some bubbles from the air stone get into the smaller canister filter and then spread around. Maybe that looks silly and maybe that's not needed overall but I had always the impression that it's air that gets spread around with those bubbles and how says the test that there is no measurable oxygen in the tank?

Does someone has a simple method to produce some water with oxygen that I can test the test kit? (The next step would 2 mg/L with light pink.)

(How do all those critters live without oxygen? Anaerobic aliens?)

 

[Musho3210]

if there alive and moving and not gasping at the surface, why do you need the test to be accurate?

 

[dilbert]

Well, I said already: just for a laugh.

The test kit was only 5.95 and it's the first Salifert kit I bought. Instructions and everything looks better than Sera.

Only, I guess zero oxygen must be wrong.

I read the instructions various times. The test kit is best before 02/2010.

Still puzzled.

 

[SkiFletch]

Wow, didn't know they made an Oxygen test kit... Learn something new everyday. Anyways, get some fresh water without anything living in it. That'll have O2 in it

 

[dilbert]

Well, I used our tapwater.

And this test vial shows the same transparent, crystal clear, colourless liquid as with all the others tests.