Tropic marin high precision hydrometer question

wolt

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Can I measure my salinity by just putting the hydrometer in the tank itself or do I have to fill something up with my tank water and put it in that?
 

ChiCity

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you could..
but you have a greater chance of breaking it.

it’s better to use a beaker
 

nereefpat

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To use it in the tank, you'd have to turn off all pumps, including the return.

A cheap Amazon graduated cylinder works well
 

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