water celery i couldn't find on the TX A&M website but there are plenty other places to find it. it's also another one that can be fed back to the fish & it is edible. https://en.wikipedia.org/wiki/Oenanthe_javanica
anyone try growing rice or water chestnuts? i noticed on FedCo this year they were selling rice seed & thought about it then. i've also noticed for the past few years looking for pond plants that some sellers are now selling water chestnuts.
with the pond up & running i was thinking of finishing it up this year with building the filtration into a raised up area on the end of the pond & after reading something on a koi website it made me realize that i should create a bog area for it. i just don't want that bog area to be bare & thought this should be used to grow something edible. i read that the Japanese koi/goldfish farmers use a 1 to 1/3 method for their ponds to filter ratio. this means that for every gallon of water the pond is being used for fish there should be 1/3rd gallon in the filter area. so, with my 600 gallon pond i should have another 200 in the filter/bog area that i can work with. it also mentioned using oyster shells in the filter area instead of using the bio balls i've used for years. it mentions this helps to soften the water for the fish while helping the bacteria have a place to adhere to that is more natural for them.