Phosphate levels reading 0.0?

[kitti-fish]

Hi! I usually don’t test my tank because nothing really causes concern but I wanted to try since I had some time during work. I did the main test but my phosphate reading from the Hana checker reads 0.0. From my understand I should be reading 0.2-0.4? I only have 4 fish, coral, an anemone, a few inverts. I feed a variety (pellets and every few days frozen food) but can’t understand why the phosphate level is low. Coral are growing well and besides my urchin passing everything is doing well. Any advice?

 

[Randy Holmes-Farley]

Which Hanna?

I recommend about 0.05 to 0.3 ppm, but a wider range can be ok. :)

 

[kitti-fish]

Which Hanna?

I recommend about 0.05 to 0.3 ppm, but a wider range can be ok. :)

The Hanna phosphate checker are there different versions? I need to check what type. Any rec on how to raise the levels?

 

[Randy Holmes-Farley]

Yes, there are different ones. The lower limit of detection on some are lower than others.

In any case, I’d feed more or dose.