Peter May says...
In general they cannot, but there are some Koi keepers who manage to get the balance just right and their Koi and plants live together in perfect harmony. I know of a pond Pembrokeshire where there are plants galore – but the plants are pristine and the water is crystal clear. It is equivalent to 'green fingers' in gardening where some Koi keepers just have 'the knack.'
I have been visiting this
I have been visiting this site for a couples of month before daring to ask any question (afraid that it might be a stupid one . I always find koi pond looks more beautiful with water plants inside, and the koi will feel happier with it too.Previously I have decided to launch my own web site.In these days I am in search of website hosting company.However, after introducing the plants for 2 weeks, my kois seems to love playing with the plants, such as swimming through them or squeeze into them (could it be skin disease that make them itchy and so rub against the plant?), pulling it or even feel like going to uproot them.domain registration is a very important process in web hosting.So I want a domain name related to some fish specially in the name of Koi.web hosting is a very important process in online business.I put the plant with soil into the pot and then cover the soil with stones (1~2 inch diameter) up to 2 inches depth, but my kois found to be removing the stones from the pot from time to time!!! Could it be the koi nature to find food from the soil? (as we know they are all hog).
Please help if there is anything I could do to keep the plants in the pond...before I give up