<a href=showthread.php?s=&postid=11657332#post11657332 target=_blank>Originally posted</a> by tonggao
Does tangs like this more than Nori, and does it have more nutrient for the fish?
IME tangs (and angelfish, rabbitfish, etc) that are trained on nori will eat it quite readily. Whether it's more approriate for the fish is a tough question to give you a yes/no answer on. My safe answer is that both should be considered
part of a well balanced herbivore diet along with Spirulina wafers, live macroalgaes (like
Ulva, Gracilaria, and
Chaetomorpha), and the occasional terrestrial veggies (broccoli, spinach, cabbage). As you may know almost all surgeonfish have preferences for certain types of algae and are not just generalized grazers in the wild, and these preferences should be taken into account when feeding your exact species. Wakame is a brown alga (kelp), while Nori is a red alga (
Poryphyra). Both are very rich in nutrients and minerals from what little reading I have done. Wakame in particular is reported to be high in omega-6 fatty acids. (Disclaimer: I'm not a fish nutritionist.)
The point to take home is that I do not recommend anyone go out and replace their nori with wakame.
In chinese market, they always sell partially dehydrated fat seaweed preserved in salt, is it the same thing?
Not sure! I've seen that seaweed before but I have no idea. I can't imagine there's any harm in trying it out, although I would rinse it in freshwater thoroughly first to get rid of the salt.