pond filtration

[Wailua Boy]

Lettuce and most greens do well. At the moment I'm raising lettuce, Asian spinach, mint, strawberries and I have a few growbeds with just water plants(ie water hyacinth, salvinia, duckweed, water lily), these plants I feed to my tilapia pond. You should take a water temperature reading. Also some of the materials in your pond do not look food safe, so may want to stay away from edibles.

 

[michael0418]

temp is 84 middle of the day and 77 middle of the night

 

[Wailua Boy]

That's a little on warm side but most floating water plants(tropical water lily does exceptionally well in the heat) should be ok and they are great nitrate removers.

 

[michael0418]

That's a little on warm side but most floating water plants(tropical water lily does exceptionally well in the heat) should be ok and they are great nitrate removers.

how big and what types of grow beds do you have or suggest?

 

[Wailua Boy]

how big and what types of grow beds do you have or suggest?

You could go a 1000g growbed to 100g, depending how heavily stocked your pond is. I'm using HDPE(high density polyethylene) trays that are 15in deep and I use bell siphons to drain the water at 12ins. Hydroponic reservoirs work good as growbeds. Univ. of Hawaii CTAHR has some good info on the subject.