My clownfish system had been completely wiped. Fish died. I went out of town for two days. I dont get it all parameters were within limits besides low ph. Fish breathing heavy not eating. This mever happed before. I instantly added air and ph buffer and alk. Nothing had helped. Just gave up clownfish breeding in thw worst possibles way. Always kept up with everything. Any ideas in such a sudden drop in ph to kill fish within 24-28 hrs. I need to learn from this bad experience. Please no harassing comments. It was an honest mistake and i dont need any harmful comments in a tough time. Ive owned tanks for 10 years and never had a problem like this ever. Didn't even know what to do with it.