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Message: <blockquote data-quote="Idech" data-source="post: 10587025" data-attributes="member: 170425"><p>My tank is 75 gallons and 11 months old.  It has about 20 corals, soft and LPS.  Most are having a hard time, skeletons are showing and some polyps even leave  the frags.</p><p></p><p>I’ve had a hard time with stability for about 6 months because of a faulty mag test.  I kept dosing magnesium when I didn’t need to.  When I realized it, my levels were at 1640 ppm or so.  Since then I’ve been slowly decreasing mag levels.</p><p></p><p>I’ve also had moderate dinos for about 5 months.  They have gone away 3-4 weeks ago after dosing silicate for 4-6 weeks, a 3 day blackout, dosing Microbacter 7, phyto and raising nitrates and phosphates that had bottomed out.</p><p></p><p>Now it seems my alkalinity is going down a little bit.  I use Red Sea blue bucket and alkalinity at 35 ppt is 7.8 to 8.2.  My alkalinity is 7.6 and salinity is about 1.0256.</p><p></p><p>I want to avoid another event that will further damage the corals.  Should I raise my alkalinity a little bit ?  To 8.4 ppm maybe ?</p><p></p><p>Here are my current parameters  :</p><p>alk : 7.6</p><p>mag : 1520</p><p>cal : 445 ppm</p><p>nitrates : 12 ppm</p><p>phosphates : close to 0 </p><p></p><p></p><p>Thank you !</p></blockquote><p></p>

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