Microbacter7 and Salinity?

[holliek2]

Hi everyone,
Has anyone noticed a drop in salinity after adding Microbacter7? Salinity before adding- 1.025 and after 1.023. Is this just part of how it works and it will rise again in a few hours? Or am I crazy!

 

[RedReefer]

I wouldn’t think it would effect the salinity. I have dosed micobacter 7 for years and I’ve never noticed a drop. I use it on new tanks and probably every month on my display.

 

[Randy Holmes-Farley Verified Community Expert]

Must be test error.

You can never lower salinity with an additive any more than just pure fresh water does, and to drop from sg = 1.025 to 1.023 means you would need to add 8.7% of the tank volume (so 8.7 gallons pure fresh water added to 100 gallons of tank water).

i hope you did not add that much MB7. lol

 

[holliek2]

Must be test error.

You can never lower salinity with an additive any more than just pure fresh water does, and to drop from sg = 1.025 to 1.023 means you would need to add 8.7% of the tank volume (so 8.7 gallons pure fresh water added to 100 gallons of tank water).

i hope you did not add that much MB7. lol

I’m guessing it was a test error also. I tested again twice and it was 1.025. Thank you!