Clown fish help please!

[Tim Cannon]

My female clown fish is acting strange, I have had the the pair of true percs since the tank was set up which is around 6 months now. Tonight I noticed her swimming to the front of the tank at the bottom near a rock and laying there for moments at a time. In the same spot always.She then will start swimming again like nothing's wrong. The male is acting normal. The female looks perfect, no spots,no heavy breathing, and eats pellets when I fed tonight.
Tank info, it's a 180 barebottom, calcium,alk,mag,and salinity is pretty spot on. Phosphate are .03-.05 but my nitrate is about 20ppm. I am vineger dosing and heavy skimming with an over sized skimmer.
Sorry about the long post, but any help or insight to her behavior would be greatly appreciated.

 

[mixedreeftank]

Hopefully someone chimes in...mine has been doing the same thing for a couple of weeks.

 

[sharkboy99999]

I wouldnt worry about it to much one of mine us to do that it was it fine . Till I get a new fish and crashed he tank . Learned the hard way about QT

 

[sabo]

Pretty sure its prespawning behaviour. Mine does it as well as the lights are ramping down. Looks like its snuggling the sand bed. Clowns do a lot of strange things!

 

[justinky]

Snugging a pillow - shot taken when actinics only were on as the lights were going off for the day.

 

[Tim Cannon]

Thanks for the response guys. She is back to normal. Kinda thought it could have been something to do with spawning.