parameters going crazy

[AquaAddict]

Hi Everybody,

So I set up a new 150 gallon system with auto top off, and an auto doser for alk (Brightwell alk). Still manually dosing a lot of ca and mg - system seems to need them. My ca is 360 (still trying to increase it) and I overdosed my mg to 1500 I take 2 weeks to stabilize my alk and then leave alone for 2 weeks.

I test again and alk rose to 11 from approx. 8. Even my salinity rose from 1.025 to 1.0295!!!!
My ca is 360 (still trying to increase it) and I overdosed my mg to 1500

New system is sealed in everywhere to reduce humidity (my hubby is paranoid about humidity).

I am told this is preventing oxygen 'transpiration' if that is the right word to getO2 into the tank. Hubby says absolute bull#$%!! (he isn't even a reefer!)

I already have lifted one of the lids a little on the sump to get more air in. I think this could be the problem. Any other ideas?

AquaAddict