New hanna phosphorus checker

robert serafino · Jul 23, 2020

New to this checker just want to know how much ppm is good for a Lps system chalices and lobos. I did the test after the converion it is 0.113 ppm is that to high or low.

WIReefer · Jul 23, 2020

People have run very successful systems with high PO4 myself I run around .03-.05. Also what is your Alk at?

robert serafino · Jul 23, 2020

Alk 8 cal 420

Randy Holmes-Farley · Jul 26, 2020

Those values all sound fine to me.

robert serafino · Jul 27, 2020

I have another tank with hammers and torches in it is 0.031 to low I run gfo.

vessxpress1 · Jul 27, 2020

Mine changes all the time. One day its 0.06 the next its 0.12. Could be test kit error. It's not going to be perfectly accurate but good enough for our use. I have a small tank and I don't run any GFO. Just cheato in the back on a reverse light cycle.

fcmatt · Jul 27, 2020

vessxpress1 said:
Mine changes all the time. One day its 0.06 the next its 0.12. Could be test kit error. It's not going to be perfectly accurate but good enough for our use. I have a small tank and I don't run any GFO. Just cheato in the back on a reverse light cycle.

If you treat the kit like you are working in a lab.. it will be more consistent. For example making sure there are no bubbles, powder fully dissolved, same amount of water in test tube, using same vial and always making sure 10ml is facing directly towards you, clean paper towel to wipe down vial during test each time so it is sparkly clean when clicking the button for all parts of the process, etc...

Maybe you are already doing all that? If so I apologize. Perhaps it will help another person

vessxpress1 · Jul 27, 2020

Yes I watched the youtube videos and I do all that. I use a 10 ml syringe from a Red Sea kit to fill the same vial every time. I'm very careful about the air bubbles too and making sure it's totally dissolved. Usually shake hard for a while and then rock it slowly to get the air bubbles out. Then wipe off again before reinserting with the 10 facing forward.