I know someone who did it but can't remember what type of fish he used. In the end he wasn't all that impressed when it came to eat them. It was a really big set up and he gave up when he moved house. The things he grew (including chillies) were OK but I wouldn't say any better than terrestrial grown, and it seemed like a huge amount of effort; frequent maintenance. Yes, it's a nice idea but it turned out not to be quite as self-sustaining and labour-free as you'd think.
Edit: They were Nile Tilapia.
Edit: They were Nile Tilapia.
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