I'll have a look on my plant for any unwelcome visitors today.
But to answer some of your questions:
I grow out side
Only with natural soil and some bonemeal when the plant goes in the ground.
Water with tap water and some times borehole water when the pump is on.
I put all of our biodegradable throw away in the ground I use for my plants to decompose. So that's most of the plants nutrients.
Loads of tea bags go in the ground and egg shells, that kind of stuff.
Thanks again for the tips guys. When I'm done checking out my plant I'll take some more photos for you.
cheers guys