Macro algea loss = parameter instability

[Jep21]

So i had a ton of macro algae in my refugium tank about 6 different types.. I added a abalone and it decimated my macro algae.. Would the abalone eating up all the macro algae be causing a tank swing and causing some sps to stn.. Also i added the abalone cause i had nuisance algae in my sump


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[Volcano1]

The Macro could help bring NO3 and PO4 down, bring O2 and PH up.If it was removed, eaten all at once, it may have made some or all of those numbers move. The stuff bond in the Macro also may have been released back into the system ,by the Abalone processing the algae, and "dumping " it back into the water. I've had, and still do have colonies RTN/STN, after being in the tank for a year or more, some times I can find a reason, sometimes not. Any way , my best guess. HTH.