I have noticed some burnt tips on one Acro and burnt edges on some montis. I started dosing Carbon (vodka) about 10 days ago to bring down my nitrates which had spiked at 20 - 25. My alk is currently 9.6 it is usually 8.5 but just increased after I started dosing The vodka. i run gfo and my phosphates are .05. I have read that high alk and low nutrients will cause burnt tips, but my nitrates are still about 15. I was dosing 8ml each 4 x day of 2 part and my total water volume is 100 gallons. I just cut that back to 5ml each 4 times a day to try and lower alk a little. Would that 1.1 Dkh raise over the course of 10 days cause the burnt tips or is it the dosing? Maybe a combination of both? What else should I do? Should I cut the burnt tips off or just let it be. The Burnt tips are starting to brown from algae.
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