Sebae Anemone not finding a spot

yes, but i have a 20 gal tank, ready if needed, its been set up for about a year now

 

i have enough lightingg. I have 4 watts per gallon in all my tanks, and i have another sebae doing fine

 

Unfortunately the watts does not matter.

 

2 sebea in a 5g....looking for trouble imo. not enough flow, not enough lights, etc. Sebea anemone is one of the most difficult anemones as they require a lot of light and perfect water conditions. You may not be seeing any signs of it dying, but I would bet it is!
Sorry, IMO (In my opinion)

 

I have another sebae in ANOTHER tank, just one and 2 clowns in the 5 and CAN be changed to larger tank when necessary

 

You have one in another tank doesnt really mean much. 20 watts of pc lighting, you might be able to keep some if any lps under that. Not an anemone. Plus with two clowns in a 5 gallon tank there is probably alot of ammonia. I would move it all to the 20 gallon. 5 is two small for one clown let alone two....