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Water changer are essential to add trace elements without dosing. 160 gallon bucket / 30 gallons weekly= $10 which over the course of a year is $520 / 10 buckets of salt.
It's not cheap but the difference of polyp extension I've seen since starting this 3 weeks ago is night and day. Growth is noticable sometimes on a daily basis. If I could find a really good skimmer that wouldn't consume so much energy I may switch back. But right now things are flourishing...
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