markv

[language filter]

I was surprised at how heated this topic got and originally didn't want to add to it. But I couldn't understand why Hanna would update the 736 to the 774 and lose so much accuracy. I looked at SuncrestReef's details in his initial post and came to a different conclusion. 

Range: 736 is .00 to .6132 ppm phosphate;   744 is .00 to .9 ppm phosphate

Accuracy: 736 is .01533 ppm phosphate;   744 is .02 ppm phosphate

Reading resolution: 736 is .003066 ppm phosphate;   744 is .01 ppm phosphate

Conclusion: the 736 is more accurate, by just over 30%;   the 744 has a wider range, extending the range from .6132 to .9, both of which are greater than needed.; the resolution, or size of each digit that displays on the meter doesn't matter as it is smaller than the accuracy of the digit displayed;   the 736 requires conversion of the number displayed to get ppm phosphate.

I chose the 744 because it is easier to use and sufficiently accurate for me. I can see why others would prefer the 736.

You want  HI774 Ultra Low Range Phosphate PPM Checker.

I have a Great White inside magnet that split. You can have it to experiment with. If you use it on the outside, you can reinforce the magnetic force.

2 tickets for the mp10, thanks

Hey Bill, have you decided whether you will go vinyl, digital, or just stream?

Two member tickets on the battery backup, please.

PM sent

I can't see anything except lights in this video Dave. Aren't you done yet?

I have a new one still in the box and can wait until the back orders are filled.

I would like it.

Mark

I am going to try the same thing using an Aquatic Life cantilever wall mount.  Two vertical metal brackets attach to the wall. The screw on the hybrid fixture closest to the wall attaches to a short arm connected to the vertical bracket. The farther screw uses a cable that attaches to the same vertical bracket.

It does sound like the Rowaphos is removing something that doesn't show up in the ICP analysis. Be careful that you don't take the phosphate levels too low, you may have to add phosphate in that case.

Good luck in solving your problem. Salt isn't cheap but it sounds like it is keeping your tank going.

Wow, I had no idea you were so old Jeff. Enjoy.

You know he did.

 “ I am a supporting member”

PM sent

Does this mean that you have chopped up all the acan colonies you posted pictures of earlier?