"KurtG" wrote in message ...
Well, that only took me 3 months to figure out. Thanks for all the
suggestions. I think the big thing was to get rid of the bio-balls and
filter material. Amazing that my anemones made it through all this.

Are water changes still necessary? I haven't done one for 6 weeks as
I've been trying to get the diatoms to burn out. Should I just do a 10%
change every month for good luck.

Do water changes only with RO/DI water.
If you use tap water you would reintroduce phosphates/nitrates
to the tank from the water.

Now, if I could just get the diatoms to bugger off...

Try replacing your DI cartridge with HiS type optimized to remove silicates.