I would do a few good water changes and let the tank recover(4 to 6 weeks). After it recovers I would slowly start Vodka/Vinegar dosing to control nitrate and use Foz Down to control Phosphate. If you keep your Phosphates <0.04 and your nitrate <10 you should do fine with acros.
If your interested in an ethical choice for rock you could try the Walt Smith Reef Project rock, I have dry and ocean seeded available.
Cheers,
Tim
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