There's people out there who only do bi-weeklies, other monthly, some never, so might not hurt to experiment, but if what you're doing works... Remember though, even with a protein skimmer, best way to get the crap out of the tank is water changes.
Chk you alk or your units though, 3.8 seem low for dKH but getting up there for meg/l. Usually see 2.5 - 4 meq/L or 7 - 11 dKH.
Also see 380–450 ppm commonly quoted for calcium if having corals.
|