ammonia spike
have a 72 gal reef tank was doing good then started with nitrates of 40 and ammonia was up to 1 with 0 nitrites now the ammonia is at 8 and nitrates 0 and nitrites 10 I have tried ammo lock and doing water changes but the ammonia is still high the fish just hide on the bottom of tank behind the rock. The water is cloudy looking! what should I do I’m at a loss
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ammonia spike