I have a bad case of diatoms (I think) that suddenly appeared in my 9 month old tank and won't go away. I had diatoms in March, later Cyano and also Dinos. Diatoms should be done with! This is a brown dusting that partially blows off and reproduces at an insane rate. The pictures below are from when I cleaned up the sand today and a few hours later. No bubbles, no slime. The only things that changed, including parameters, were I used about a 1/2 gal of grocery store spring water instead of rodi once (13 gal tank) about a week before this started and added a half dozen frag plugs I bought on Amazon. I have almost all softies and no fish, so I decided to do a large water change.
I put in a UV filter and did a 50% water change. No improvement. Another 50% water change. No improvement. Removed all the new plugs but one (moved corals onto old plugs) and did an 80% water change with only a little improvement. What is going on?
I put in a UV filter and did a 50% water change. No improvement. Another 50% water change. No improvement. Removed all the new plugs but one (moved corals onto old plugs) and did an 80% water change with only a little improvement. What is going on?
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