When its time to change rowaphors?

[abflug22]

Hi All,

Pls advise when its time to change the rowaphors in FR?

Any colors changes, or foul smell given, or just simply test

the nitrate to determine if its no longer effective.

Also is ther expiry date for rowaphors?

wats the dosage gauge to use, for instance 1kg pac, do you put half of it in for 4ft?

appreciate it

[roidan]

test your phosphates, once there are detectable levels, it is time to change.

and also, since when did rowaphos absorb nitrates

u can use the whole 1kg for your tank if your FR is big enough...as for expiry date, not too sure myself.

[abflug22]

oops,

confused over the elements.... ok finally got it straighten

tks Bro Roidan for advice...