ferts and amano shrimp

[sherry]

are flourish or greg watsons cmb plus iron harmful to shrimp?

 

[AlexPerez]

As long as you don't overdose and do regular water changes, it should be fine.
I use CSM+B + iron on all my shrimp tanks.

 

[malkore]

Usually its the copper that's toxic to inverts. Just don't exceed the recommeded dosing and you'll be fine.