Zero po4 all the time

[becon776]

Personally id turn down the skimmer and reduce the lighting intensity and/or time on for the fuge. But that's just me, i dont like seeing 0 nutrients. Others have had success with similar readings with uln tanks so if everything's looking good and growing well you can just keep doing what you're doing. I would however for sure feed corals heavily at those levels.

The skimmer is DC. Have it turned down but still running to facilitate the recirc co2 scrubber.
I'd say the roller mat is the heavy lifter in here. Trigger platinum is no joke.

 

[GARRIGA]

I struggle believing a tank fed heavily is ever 100% nutrient deficient 24/7. That would suggest that filtration is able to process and removed it immediately.

 

[jmichaelh7]

Heavy in heavy out what s about increasing food

 

[BlackZebrasoma]

Hi guys, long time reefer here (2001). Latest build is reefer 450 and in this tank I've decided to go heavy on sps.

This has been a LONG road with Marco Rock. (A whole other talk show) when I have always used real fiji. Tank is 3 yrs. Up until Christmas was dealing with a long war with GHA And sanded algae. Doubled down and poof.. tank seems finally stable and mature.
Of course I started with the easy stuff and some have grown into decent colonies (stylos, monti) ready to move to some higher end pieces.
My question is this tank has almost NEVER registered a po4 value. No matter what or how often I feed. Zero on the Hanna. I scrape the algae from the glass daily other wise algae problems gone. I get skimmate, chato grows slowly. The only time I registered reading was when I was dosing PO4 (blasphemy for an old schooler lol). Should I be concerned? Nervous to add higher end frags.
Rsr 450
ReefLED 90 X'S 3
trigger platinum sump with rollermat
Alk ~8 Ca~420 mg 1279 (currently slowly raising) dosing brs 3 part. 30 ml per day alk.
PO4 - 0.00 (HANNA)
N03 -3ppm Nyos
PH - 8.1 night -8.3 day
Neptune Gro over fuge
Will add some tank shots tomorrow. Light are out now

Just buy a cheap salifert phosphate test to control the levels. The Hanna test often shows wrong. my checker showed 0,00 but i sent a total ICP test and it came out 0.15. I recommend you to buy a quick PO4 test or send an ICP test

 

[becon776]

I struggle believing a tank fed heavily is ever 100% nutrient deficient 24/7. That would suggest that filtration is able to process and removed it immediately.

I think I am going to test in am and see if any different I always test just after lights out. After a full day of "sun"