You could use some mosquito dunks to keep the motel occupants under control.

Yes you can use them for compost or you could plant a bog garden AND use the mosquito dunks holly suggested

"I got the idea of adding fast growing aquatic plants to the pond and harvesting them for compost. Is this a do able solution?"

Yeah, it worked in my ponds and the water is crystal clear. How about egeria densa (aka Large-flowered Waterweed)?

Hi
Is there such a thing as "slow growing" aquatic plant??
I remove at least two bushels a week from my large pool lol I use the floating types as a mulch they weigh very little and no chance of resprouting They are loaded with nutrients pulled from the water and make great "compost"
Wish i could sell all my excess, by now I could buy that summer home on the french riviera lol But "composting seems the best second solution?? lol gary

I've got some prime swamp land on the riviera to sell you Gary and all the escargot you can muster.

I'm not a sailor, i'm a gardener and see my brother's swamp as a waste.

Re Mosquito population they are pretty low. i had one buzz my ear last night and it was the 1st one in quite a while. I've got dragon flies and they must be eating well.

Thanks for the suggestions regarding the aquatic plants. I wonder though if some larger plants couldn't be utilized though? There are many so called weeds living in poor soil around here. They grow nice thick robust stalks. I have to imagine there is something larger that would grow in the water. I have no interest in making this pond look like some thing of beauty for a Home & Garden's cover. I want production. Liken it to a hydroponic solution.

What part of the country are you in? Around these parts taro, cattails, pickerel and if I sat and thought a bit I'm sure could think of more that grow like crazy mad and big. Make fine compost. And some of them are quite pretty and edible. You could do a search on your states land grant university for aquatic plants and get some ideas also.

Toss a handful of gambusia in and you'll have a built in fertilizer factory and no end to the plants.

~dianne

There are many aquatic and bog plants that you can grow and most are aggressive growers that would add to compost. Water gardens can be gorgeous. I'm a gardener too but would not have a garden without water features. Many aquatic plants also flower. Waterlilies are wonderful.

Mosquito Dunks are non toxic to wildlife and pets and control mosquitoes in water sources.

hi
I've grown Waterchestnuts ,rice, roselle,cranberries.tapioca,taro. Depending on your climate there are dozens more. You can also use the water to irrigate a regular vegetable garden . Get water,fertilizer thrown in.
the reason i mentioned marketing is that water plants are generally rather expensive .The hyacinth for example sells for 5 bucks each at local nuseries and I compost at least 15 a week . Tropical water lilies in my last transplant had 15 offsets and the cheapest I've seen them is 25/30 each. Amazon sword plants used in the aquarium trade .One has produced 30 offsets since march and they sell locally for 2/6 bucks each. have never understood why water plants are so expensive ?? gary

They've jacked up the prices since watergardening became so popular....supply and demand. Demand goes up and so does the price.