Biocube Phosphate Swings

[Davisc1293]

I only feed one small frozen cube a day what could be causeing such drastic swings. On the graph on the 2nd it was .07 on that night it was down from over .1 so i pulled the gfo and the next day 24 hours later it had more then doubled. Gfo brought it back down but what could be causing such a rise?

 

[TheReefDiary]

Welcome to the struggles of a nano tank. Currently dealing with the same issue. My tank is only 4 months old so things are still settling in. I have a feeling I'll be dealing with this issue for a bit until I get a better understanding of it.

I fed reef roids the other night po4 up to .25 a day later hanna reading .01. I'm now dosing neophos. I've also heard using nopox has helped some people balance out po4 and no3.

My swings brought about a case of dinos I'm currently battling against.

 

[Miami Reef]

It takes time to reach stability and equilibrium. The cubes shouldn’t be causing the jumps, but rather the rocks and substrates unbinding PO4 to reach equilibrium with the bulk water.