Last week I bought some saltwater from MHA (as its pretty hard for me to mix it myself), when I tested it I got readings of 1.031 on my refractometer. My first thought was that my refractometer was just way out of wack, but I double checked with RO water and my tank's saltwater, both giving the expected results (1.000 and 1.026).  I went to MHA today and basically got told it must be my refractometer, and they always have between 1.024 and 1.026, so I (stupidly) got some more.  I get home today and once again check my refractometer, it is perfectly calibrated with RO and shows my saltwater is 1.026 and there saltwater is now 1.032....

Has anyone else dealt with this? Not even sure what to do, the guy spoke to me as though I knew nothing about salinity when I was there (not one of the guys/girls I normally deal with) but I don't see that it can be my refractometer when it is reading RO and my own tank water perfectly?

Worth mentioning, I have never put it straight in my tank.

Note to self.... Bearing in mind how much MHA as a whole tho seperatly owned loves TMC, maybe I could start a conspiracy theory that one secretly owns the other?


Glad it isnt in your tank could wreak havoc.

Me too, I am lucky that we are not on a meter,we fill a 120litre barrel about every 5 days. With the Discus and the marines it would be very hard without it. At MHA today I watched a bloke with loads of containers going for a fill up.

I've also had water from other maidenhead shops high tds and that couldn't care less.  I think it depends on how efficient the manager is and how they want their shop run.  If it's high I tell them it's not acceptable and lazy and don't go back.