Low Calcium on purpose?

[brad]

I had a tank crash, and since redoing the tank, I've been going to mostly hard corals. Last night I was scraping coraline and thinking about getting rid of all my hard corals and intentionally lowering the calcium (not alkalinity) - just so I would never have to scrape coraline again. Would this work? Would I be able to keep soft corals and anemones? This is probably not the direction I want to go, I just wondered if it would work.

 

[Calappidae]

Some sea urchins I think will eat coraline, won't be effective but just a thought.

Easier to get rid of asterinas may also mess around with it.

 

[wireefman]

I have a long spine urchin in my 70 cube... I have coralline on every surface but the tank glass... tanks been up a yr... never once have I scraped coralline..

 

[brad]

I have a long spine urchin in my 70 cube... I have coralline on every surface but the tank glass... tanks been up a yr... never once have I scraped coralline..

What is your Ca and Alk?

 

[wireefman]

as of last test that was on thurs evening

ca 420
alk 9 dkh
mag 1300

there is coralline growing all over the place... my urchins eat it...