GBTA seems bigger when lights are off

[Embowe]

Why does it seem like my GBTA is more "inflated" when my lights are out? It seems bigger when my lights are out and when I turn them on (1 hour of antics then my daylight bulbs) it seems to shrink a little smaller. It is still inflated with bubble tips but just dosnt look as big...It is eating the pieces of silverside that I have offered it and looks to be in great health otherwise...It has only been in my tank for 4 days...could it be its own way to adjusting to me light setup (2x39watt antic and 2x10k daylights)

 

[phender]

I can't tell you why, but I can tell you that it is normal. Many people have reported this for the first week or so. I personally had one that did this as well.

If everything else seems good, it is nothing to worry about.