Settling tank drops about 1 cm daily...since the tank is in full sun and it's terribly hot, I suspect evaporation to be the biggest part in it. Even so, I have no problem with that amount of loss, float-valve top-up will take any worry away for that.
Mr.T. is fully unaware of what's coming, waiting for his food, this morning he hurried over when I looked into his pond. Tickled and stroked him a bit, he's a patient beggar, not giving up...lol. Has to wait a bit more for our cleaning lady to fix my coffee first. hahaha...