I picked up a new thermometer, a hydrometer, and a bag of marine salt. I mixed some of the salt with the water I had in the tank already. How long should I wait before testing the water with the hydrometer? I ended up getting the one that you fill with water. The directions they gave are a bit complicated so I'll need some help with that. The water is abit cloudy from the salt and I have the filter running in the tank to agitate the water. And someone told me that they dont need a heater and they are fine at room temp. Is that a true statement? In about 3-4 days I'll be getting a couple of fiddlers.
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