Ca - Salifert says 270, Elos says 450 - Page 2

christyf5 · #1 02-03-2012, 03:15 PM

Quote:

Originally Posted by Delphinus

Well, I just find it odd that I almost always find the SKU sticker, covers the expiry date. To me it feels a little bit rude to sit there at the store and peel that back before buying it, but I'm going to make a point of principle that I'm no longer buying Elos UNLESS I can see at the store that it's NOT expired. I think this is the 3rd time this has happened to me. Man was I annoyed with myself this week when I made that discovery that it was almost a year past that date. I've been too trusting I guess.

Well eff that, I have no problem being rude especially after our discussion about the zeo stuff. I'm peeling back the sticker on everything I buy from now on

Aquattro · #2 02-03-2012, 03:23 PM

Quote:

Originally Posted by christyf5

Well eff that, I have no problem being rude especially after our discussion about the zeo stuff. I'm peeling back the sticker on everything I buy from now on

No kidding. Don't you think it's kinda rude to sell you old crap?? Not only would I check, but if the store was selling expired kits and I believed it was a regular practice, I'd find a new store.

christyf5 · #3 02-03-2012, 03:32 PM

Quote:

Originally Posted by Aquattro

No kidding. Don't you think it's kinda rude to sell you old crap?? Not only would I check, but if the store was selling expired kits and I believed it was a regular practice, I'd find a new store.

Yeah I haven't bought from them in awhile. Not sure if it was just a handy spot to put the UPC code or what but I didn't even notice until Tony and I were chatting about whether the stuff expires or not. He found an expiry date on his and upon closer inspection, so did mine. They were way out of whack too.

Delphinus · #4 02-07-2012, 05:01 AM

Picked up a Hanna calcium checker on the weekend. According to it ... 546.

Uh, wow.

Turned off the Ca dosing for now and will retest tomorrow. There's a slight chance I botched the test in a way to bump it to a higher reading but it won't be by a huge amount. Unlike the Alk and PO4 testers you only use 0.1ml of tank water diluted in 10ml of DI water, and 0.1ml is a very miniscule amount and I think I might have overshot the mark by a droplet or thereabouts. (I didn't use the cone dispenser that came with it. The Alk checker came with one as well but I never use that because it doesn't actually have a hole in the end of it on that one).

Question for anyone who uses these Hanna checkers for Calcium, there's a rubberized cone end and a plastic cone end. I assume one is for the reagent syringe and the other for the sample syringe .. but which one is which?

Myka · #5 02-07-2012, 12:18 PM

Tony, there have been a lot of complaints about the Hanna Calcium Checkers reading really high. I have always found Elos to read about 80-100 ppm higher than Salifert (the Elos alkalinity reads 1-2 dKH lower than Salifert). I have also found old Salifert kits (still within expiry) to be another 80-100 ppm lower than a new Salifert kit. I have no idea which one is more accurate, but I do know my tank is happier when I use the Elos kits and dose according to them. I have all but given up on Salifert kits for calcium and alkalinity. I need to buy some new Elos kits right away here, so it will be interesting to compare them to my old ones.

I'm trying to locate (it's a back burner project) some good independent calibration fluids for calcium, alkalinity, and magnesium. I hear they are out there somewhere.