Mandarin questions

[Delphinus]

No let's not travel this road travelled before. Your opinion is just that, an opinion and it's no more valid than, say, my opinion. You better not be feeding Cyclops either then, since it too is cultivated in FW.

SW vs FW is irrelevant. As a food source either it will meet something's needs, or it won't. If it doesn't, than it doesn't. But if it does, then it's totally irrelevant as to its origins.

Your analogies are entertaining but flawed, my friend. If you're happy not feeding PE mysis to your fish then good for you. Whatever works for you is what's important.

I agree that simply feeding a homogenous diet of one thing may be flawed for long-term. That's why it's important to look at the numbers and be sure of what you're feeding.