Hi guys, I'm kind of at a loss. I have a 38g reef with a 20g sump, a 55g sumpless FOWLR tank, and 10g mantis tank.
For some reason, every tank eats up alk like theres no tomorrow, I'm talking around 6dkh and it drops the ph to about 7.7-7.8 too. On the reef alone I have to dose 5.25 ML of reef buffer every day to keep it level. There is no way I should be having to dose like this is there? When I first noticed the problem I thought it was just the PH, so I tried opening the window and putting in a fan thinking it might be built up Co2 in my room, that didn't do anything, I even put an air pump outside my window and had it pumping fresh air through an airstone into my sump, still did nothing.
If anyone has any ideas that would be great, thank you for your time.