 Normal Behaviour?
Hi,
Only had my pond a few weeks and I've got a few koi and a ghost koi.
Every now and again the ghost koi rubs himself against the side or pump as if to scratch an itch!? Other than that he appears fine and is quite active and feeds well (Although I have just changed the food to some Nishikoi "growth" and he appears to spit it back out sometimes!?)
Also, I have a largish white koi (sorry no idea what type!) who sometimes lays perfectly still at the bottom (and sometimes tucks in all of his fins!?) - I did a water test (I have been every couple of days since putting the pond in) and the PH appeared a bit high (difficult to tell for sure as each of my family reckoned the colour corresponded with a different value!?) but I think it had crept up to 8.5 or 9. I did a 30% water change and he does appear to have perked up a bit but he still lies on the bottom at times?
Cheers
Paul | 
