I wouldn't worry too much about it being completely clean. With daily water changes, you should be removing anything that will cause the water quality to degrade quickly, especially if you're removing any dead zoox and what sloughs off of the base.
Questions:
1. Can you switch to the smallest Koralia as others have mentioned, or turn down the flow so that the gig isn't moving at all? I use the same Koralia as well.
I will have to get a PH then.
2. How consistent is the temperature? I just noticed today that my green gig was looking a bit odd -- the edge of the disc was curled on top of itself. Then I noticed that the heater was unplugged and the tank got into the low 70s.
The temp stays at a constant 82 except during water change where the temp gauge is out of the water.
3. The gig is starting to look bleached. Is that your assumption as well? I agree with others that it's to give it more light. I agree that is why I said that I think I should increase the light. Right now it is at 12%
4. Is this a new QT tank? Was it ever used for anything else? Is it possible that there is residual "something" (I don't know what) that's affecting the nem? Brand new fresh out of the box from the store. Nothing else has ever been in it. I did not start having this type of deflation until everyone sated to raise the light.
5. Where us the replacement water coming from? Apologies if you've answered this already.It is fresh made SW that has been airated and temperature raised. I thought the water might be off too so I tested it and there was nothing abnormal.
Keep up the good work. I know it's tough. This is probably the longest I've seen a gig hang on before either starting to show a full recovery, or dying. Something else is at play here, not just the illness. We just need to pinpoint what it is.