- Joined
- Apr 10, 2020
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- 108
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So I have a PH problem. It drops. Drops big. From 8.3 to 7.6. I've opened up windows to allow fresh air. I've taken my air intake outside. I have a co2 scrubber. All will go up to 8.3 for a couple days then hover 7.6 to 7.7. I dose alk 2 part. Alk levels are 7.9dkh. I run refugium with alternating lighting schedule to DT. This is a newer apex. I swapped out mid October. Have recalibrated probes 2 times since. I have checked PH with separate PH Hanna checker so apex is reading correctly. I'm dosing alk 14ml daily split between 12 doses. Same with calcium. How can I check or diagnose my problem? Water changes bring up ph again for a couple days then back to low PH. Corals seem to be doing ok except for montiporas and scolys. Trachy goni leathers torches doing great. Any and all help is appreciated.