None, i have tiny mosquito fish in the system from a local pond. Also, i put in BT dunks which is a natural bacteria that prevents mosquitoes from growing. I’m right by Houston so we definitely have a ton of mosquitoes. This would kill a lot more then could live.
perfect. I'm in central fl and plan on setting up something just like this. looks like you have it dialed in.
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Yup, you could add a pump and more fish to the overall system. Bigger fish might eat the plants. Azolla also likes calm water.
I'll probably skip the pump and do something just like that.
