This might sound insane but has anyone ever tried eating their macroalgae? I'm thinking about getting some Ulva lactucathe and eating some of it when it grows too big.
Not sure if i would go there but i throw out about 3 gallons of chaeto a week from my 2 refugiums (180 g tank and 200 g tank). Hmmm, maybe mix in with some salad? Probably not
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Some people have, yes, but it’s strongly recommended against unless it’s in a clean system purely dedicated to the farming of macroalgae for human consumption due to contamination concerns (from both metals and toxins):
In all seriousness, is is it safe to harvest and eat macroalgae from my own aquarium, specifically members of the Ulva genus (and possibly Caulerpa lentillifera in the future)? Is there something they would contain after having grown in my aquarium that would make them inedible or would a...
www.reef2reef.com
There are some scholarly articles available about land-based macro farming if anyone is interested, but it’d probably take me a while to sort through and find a few useful ones.