Im currently in the enlistment process for the army national guard. Just got my medical waver and well while I’m doing basic training I want peace of mind because I will be away and my family will be taking care of my tank. I’m looking into a digital refractometer and well the apex for what it monitors seems quite worth it and kinda cheap when you think of the cost of every digital monitor, a good digital salinity reader is like 130 dollars and ph wise that’s like another 120 etc. with the apex im thinking I can have nutri seawater delivered twice a month for my family to do water changes and keep peace of mind the apex will keep proper salinity. If the apex controls the ATO than that means my salinity can not go up I could install a fan in the sump to help cool the tank etc so I’m thinking its a good buy for $800 dollars. I know it’s been out nearly 2 or 3 years with the current controller so I’m sure a upgraded monitor will cone out at some point. I haven’t been given a basics date yet however I can presume within 8 months from now. Once I pay off my PayPal balance from work on my new control freak tank I’m working on to be low maintenance I plan to buy the apex or a similar system if something better comes out. At it’s price point im sure PayPal will give me a year financing plan making it like $66.76-$75 dollars a month depending on tax. Which is quite affordable. Edit: P.S i don’t trust my family to accurately mix salt to the proper salinity however I do trust Nutri seawater to be exactly 1.027 salinity and be good for soft corals and invertebrates since it’s fortified natural seawater. I use to use the stuff 100% on my saltwater 10g nano now I use it 2x a month and the other 2x is coral pro. I’m upgrading to a 40 gal breeder and treating it as a isolated system nothing substrate or rock wise is coming out of the nano just my two clounds my blood red fire shrimp and maybe the timid emerald crab who afraid of my falco hawkfish maybe the snails, will add a starfish to the nano it’s bio load will be reduced and well I may try using it to raise amano Zoe’s to juveniles and just grow plytoplankton and more types of copepods in as a good source. I don’t trust starfish at all I trust crab more than I trust a starfish.