My Vortech gets fully encrusted in coraline algae every few months. It Literally cakes up and prevents good flow. anyone else having this awful issue? 

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That’s crazy. Almost look like paint.what are you dosing?
Daily 10ml dose of Sherwin-Williams purple magic.![]()
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What he saidPlease share the secret to rock that purple! Wish i had that probLem.

x 2 !!Please share the secret to rock that purple! Wish i had that probLem.
What about Mag?BI-monthly home depot bucket water changes. Red sea blue bucket
Alk - ranges from 7.5 to 8.5 dkh
Calcium is always around - 450
N03 - near 0
P04 - near 0
Temp 80-82.
I dose B-ionic A+B and that's it. I've Been using the product for over 15 years on Multiple reefs.



