Well i've just met the neighbour, and, to be kind, i can't see him making it to the top of the house, he is VERY large and huffs and puffs.
So no need to buy a lock, phew !
Tomorrow morning i will fill the autotopup bucket with a fresh res, i'll pH it down to 5.5 maybe 5.2, as the pH does seem to rise, but very slowly.
So excited about that first root hitting the water
Have a good week/end chaps and chapesses
All the best,
steely x x x