Hanna phosphate 713 or 736?

Which one and why? Looking to order tonight or tomorrow to test before I set up my new tank.

 

I've been using the 713. I didn't know about the ultra low version. I'll follow.

 

I just ordered the 713, can't pass up the BRS sale

 

Either is mostly fine. When you use it, make sure you mix the reagent for the full two minutes according to their instructions.

 

If you're an SPS keeper, 736 is what you want.

 

Hmm maybe I'll order the 736 damn

 

Don't wait too long these online sites go "out of stock" a lot during these big sales. I just ordered the 736. I have one of the old school 713 the size of a brick. It works fine just thought I would try something different as sometimes I wonder about mine since it's many years old.

 

736

Be sure to multiply your value by 3.066 and divide by 1,000 to estimate the amount of phosphate.

It measures phosphorus atca much lower resolution.

 

Ordered 736 on amazon prime, will return 713 or resell