Water change

[miltoncaboverde]

Hi I have 75 gallon of salt water tank and 30 gallon of sump
What % off water change I have to do and that % of water I have to take out how many gallons is? Thanks I really need help

 

[Ruben's Reef]

Welcome to R2R !!! I would do a 10%, around 10 gallons weekly or every two weeks depending on your livestock.

 

[Captain Quint]

Welcome to R2R

+1 with @spyder813

Like he stated 10% and up to 20% depending on livestock. Just keep a good check on nitrates as they will give you a good idea on how much of a percentage. If nitrates are still low after a 10g change you would be fine...if a bit high you might need to adjust you % a bit more.

 

[saltyfilmfolks]

Welcome to R2R

+1 with @spyder813

Like he stated 10% and up to 20% depending on livestock. Just keep a good check on nitrates as they will give you a good idea on how much of a percentage. If nitrates are still low after a 10g change you would be fine...if a bit high you might need to adjust you % a bit more.

This ^^^