Hanna Colorimeter test kits
 

Does anybody have these test kits and where did you get them? What is available besides phosphate & alkalinity kits? Please advise. Thanks much!

I got my phosphate checker from Oceanic Corals. Cheers.

Thanks Otto. They are out of them right now... but I'll keep my eyes open.

Just got my Hanna Alk Checker from BRS

goreef.com has them. Only, Phosphate, Phosphorus, Alkalinity and Nitrite are available now. Nitrate is in the works. Magnesium would be possible too, but I don't know if their working on it.

Magnesium is next in line I believe.

I have read the phosphate meter has some accuracy issues when used for reef testing. A nano-reef member uses the phosphorus meter instead and a mathematical formula to convert the reading to an accurate phosphate reading.

I have the ULR Phosphorus meter and find it very accurate. I did some experimenting around on it's accuracy. I diluted the water I was testing with P-free seawater and found it gave bang on results.

One thing about the alk-meter I just read is that they had reliability issues with the powder reagents and are replacing them with liquid:

http://reefbuilders.com/2011/01/24/h...placed-liquid/

For alk, Ca and Mg, the ordinary test kits (i.e. Salifert) are accurate enough for my needs.

I believe they are now selling the liquid reagents to replace the powders.

Yes, I made sure when I ordered the Alk Kit that it came with the liquid regent