Quick question

[slayerhellfire]

So recently my tank has taken a complete 360 for the better, 90% zoas coupe sps, LPS. Now I recently went skimmerless after months of trying to increase my nutrients and after 4 days not having a skimmer all my corals looked great, only thing I am running now is ROX carbon. My tank is a 60 shallow with a 40 breeder maybe 75 twv.
First question I am going to start doing my water changes every two weeks should I do only 5 With a tank like this or stick to 10.
Second question in my sump all I have in there is a filter sock and a carbon reactor should I incorporate some sort of airation of some sort ?? Dont have any issues with PH 8.18 at night, 8.28ish did in the day.

Stock list is pretty small two clowns, yellow eye khol tang, three chromis.

 

[EmdeReef]

I’d stick with 10g water change if doing every 2 weeks.

You can run your skimmer without the collection cup if you want, that will help aerate.