I am going thru the Pax turning my Chatto to mush as it seems everyone else is having this problem ,, the first two times I used it ,, it worked great, I was a happy camper , was thinking this was the best money I had ever spent ,,, the last two times it has turned my Chatto to mush ,,
My Hydrometer was off ,, it was reading 1.25 was actually 1.32

it was a very old Hydometer ,, I was thinking this might be the problem ,, then I found this thread ,, now I am thinking maybe its not my salinity that's the problem, couldn't have helped ,, but it seems like there might be other problems with this piece of equipment ,, I got the water back to right and will load my Pax up with some fresh Chatto ,, see what happens ,, if it turns the Chatto to mush again ,, I will go back to growing Chatto in a tray in the sump tank with another kind of light over it ,, that worked good before ,, the down side ,, pieces of chatto would break off and get into my return pump ,,
I dose liquid iron to the system every week ,, plus 10ml of a product called Chatto Grow ,, I also have Nitrates in the system ,, I am sure they are high as the Pax hasn't been working ,, so my chatto is getting what it needs to grow ,, I am not understanding why this is going on ,, it shouldn't be ,, if the Pax works good enough to grow the Chatto a few times ,, there is no reason for it to stop working and turn the Chatto to mush ,, I am not a smart person though