H20 ocean salt is just rebadged Red Sea salt

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i just drop a powerhead in there with a heater and let it mix overnight in the bucket and i find that the residual that i use to get is almost all gone. And yes when mix 5 gallons of water to the seachems i use to use 2 and half to 3 cups and i find with the h20 i have to use 3 cup-ish to get 1.025.