Tank is 18 months old. Has been doing very well especially for past 6 months. Mixed reef, 250 gal system.
perameters
1.025
Ca 435 (Hanna)
Dkh 8.7 (Hanna)
N03 10 (Hanna)
Mg 1330 (apex)
P04 .23 (Hanna)
RODI water tests 0 with TDS meter.
AWC - 10% /week. 3.5 gal. Per day
Things have been very stable for months. Then this past week seemingly out of the blue my phosphates jumped up to .2. (I typically test my P04 and N03 1-2 times a week) P04 In the past been around .04 to .07. The only change I made a few weeks ago was to install a reefmat to replace my socks.
6 months ago my phosphates and nitrates were going up so I started dosing nopox. I started small and it was enough to keep P04 down. Ive been dosing around 3ml ever since. Now this sudden increase.
corals including acros all seem happy. No change in polyp extension. As far as I can see all corals seem fine.
I don’t understand the sudden change in phosphates. Same feeding regimen. So question is why and what if anything should I consider doing?
perameters
1.025
Ca 435 (Hanna)
Dkh 8.7 (Hanna)
N03 10 (Hanna)
Mg 1330 (apex)
P04 .23 (Hanna)
RODI water tests 0 with TDS meter.
AWC - 10% /week. 3.5 gal. Per day
Things have been very stable for months. Then this past week seemingly out of the blue my phosphates jumped up to .2. (I typically test my P04 and N03 1-2 times a week) P04 In the past been around .04 to .07. The only change I made a few weeks ago was to install a reefmat to replace my socks.
6 months ago my phosphates and nitrates were going up so I started dosing nopox. I started small and it was enough to keep P04 down. Ive been dosing around 3ml ever since. Now this sudden increase.
corals including acros all seem happy. No change in polyp extension. As far as I can see all corals seem fine.
I don’t understand the sudden change in phosphates. Same feeding regimen. So question is why and what if anything should I consider doing?