What cause this?
This morning at 6:30am I notice that the water was pretty cloudly in the tank, nothing was added to this system. Came home from work at 4:00pm thinking the worse and found that the water is crystal clear again. Fish and coral are find. Any idea what may have cause this?
sg. 1025
cal. 420
alk. 6.4
ph. 8.0
no3 25
no2 0
amm. 0
Thanks,
Ed.
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