RMS bottle (dumb) question

[FishTacos2]

Just got my first batch of supplements

Are the reef moonshiner bottle sealers intended to stay in place and you no longer use the cap? I assume they create an airtight seal.?

 

[FishTacos2]

 

[Mattiejay6]

Just got my first batch of supplements

Are the reef moonshiner bottle sealers intended to stay in place and you no longer use the cap? I assume they create an airtight seal.?

If you want to dose with a syringe you can use the included push in topper and no cap is needed. If you wanna dose via more bulk fluid then leave cap on and don’t use the syringe top