bio load-Do you have a large bio load in your tank ie, large number of tangs, large fish load? If you do then amount of media relative to your dissolved CO2 levels in your reef may be too low, hence the media being used up quicker than expected. Do you have an algae scrubber or refugium with algae on your system? May help to raise your pH without burning through expensive media. Kinda like some reefers who will run calcium reactor output through algae device to reduce CO2 levels and raise pH. Are you storing the media in an airtight container? If not the media will be used up before you put it in the reactor, and it may not change color as expected. Just spitballing now… seems you’ve done everything else. Could get a CO2 meter and find out how high CO2 level is in your basement. If higher than outside air then you have an answer.
clown (adult, medium)
copper band butterfly fish (adult, medium)
achilles tang (juv, medium)
purple tange (adult, large)
yellow tang (adult, small)
blonde naso tang (adult, huge fat large)
leopard wrasse (adult, medium)
melanurus wrasse (juv, small)
2x blue stripe cleaner wrasse (1 adult, 1 juv)
dwarf potters angle (fat adult)
starry blenny (fat adult)
cleaner shrimp (adult)
+cleanup crew
Yes, I have an algae scrubber, and it is scrubbing 24x7
I have a CaRx but I have it turned off right now while dosing kalkwasser
Media is stored air tight in the container it came in - its color changing and I do see Ph increase when I change it
I may go get a co2 meter, my guess is it's pretty high. I heard I could go really silly with this and buy whole home air exchanger, idk if I'm there yet..