Hi, I have a 75 gallon tank with a r-100 sump with a skimmer and refugium a little more that a week ago I purchased a tennis ball sized piece of chaeto from algae barn and some phyto I already had pods from a local dealer in my tank and I wanted to feed them with the phyto. When the chaeto came I put in my tank and left the light off for a day and turned it on at night witch it is on for 10 hours. I also am dosing chetogro twice a week. When I tested nitrates a few days after they were 10, and the salifert test kit made my phosphate look low but I couldn't really read it that well. The macro algae was looking fine until diatom started to grow in the refugium. when I got the cheto it was very brittle and a bunch of pieces where falling down on the bottom so I removed them. The cheto started bleaching and was getting very brittle I thought my light was to powerful so I put a piece of paper over it. since then the cheto has been bleaching more and the diatoms are getting worse, please help.
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