Who Gives A Fish Forums

Yeah, Mg's a sneaky one. I test it monthly now. My tank's been happy since I started dosing it separately. Good luck, finscape!

I've had success with kalkwasser in my ATO. My 120-gallon tank stays at 420 Ca, 8 dKH without much fuss. Just make sure your ATO reservoir is big enough to avoid swings. What's your salinity at? That can throw things off too.

Spot feeding's great, but don't overdo it. Excess food can spike nitrates. I feed mine twice a week, tiny amounts. And yeah, low flow during feeding is a must.

Agree with DiscusDare. Mushrooms especially hate strong flow. My tank's a 60 gallon with a single MP10 at 25%, and everything's happy. What's your water change routine? Dirty water can mess with their vibe.