GORGEOUS!!!Oscar's won't need the raised PH. They naturally come from low PH soft waters of the Amazon. Shoot for mid 6 or lower and hardness of 50 or less. This is why I gave my beautiful Osace Toni away to a fellow MFKer. My water change water was PH of 7.8 and hardness of 350. The city drew it water from limestone aquifers.
So go the other way, you need soft low PH water.
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