I would consider that a bit high and likely a sign of overfeeding.. But if everything is doing good and you don't have nuisance algae issues I wouldn't worry too much but would likely reduce my feeding to see how the levels respond.. I also wouldn't rely on API for phosphate tests.... API is fine for some tests but phosphate is not one I would use personally.. Salifert/redsea,etc.. hanna,etc..
So I might recommend a second opinion on that..
In general I personally would shoot for phosphate levels of ~.15mg/l down to ~.05mg/l and watching to see if you have problems with nuisance algae..
zero nitrate/phosphate is bad (and likely not possible as nothing would be living in the tank) as like I stated its nutrients that are needed.. But too much is just as bad as too little..
Most say "zero" but thats just thrown out there to be generic and to avoid a discussion of proper levels..
Not too long ago achieving "zero" or low levels wasn't as easy/achievable as it is now.. There are still plenty though with excessive nutrient levels but achieving low/proper levels is fairly simple now..
I try not to over feed much.. but let's face it.. I enjoy watching my clowns and corals eat and be happy..
I'll be going over to my buddies this weekend and he has sailfert test.. so he will test my water and see what his test read..
I've got a little hair algea in the fuge... ton of cheato..
But woke up a few days ago to a mess of red slime cyano everywhere.. so I'm dealing with that now..
I do have a reactor coming monday.. along with some chemipure elite (gonna see how I like that stuff)
Plan on running that in the reactor.. along with some gfo if or when needed
My goal is all natural filtration
I was carbon dosing for a while to help bring down nitrates... I stopped because of the cyano that popped up (I assume from the carbon) I've never had a speck of cyano in yhe last year of running this set up..
But have had and overcame every other neicence thus far... daitoms/gha/ some turf algea/ tank breaking/ a tank crash/ and last was a Dino outbreak..
But slowly but surely it's all coming around and my tank and it's inhabitants are doing great..and a beautiful reef will emerge
(All my Lil frags are super happy today... expecially my frogspawn)
Nothing better than coming home from the dentist and a sore mouth than that!!
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