Breakthecycle2
2500 Club Member
I see a lot of people leaving nori in their tanks all day. I would like too for my Idols and tangs. I was just curious, doesn't the stuff that breaks off just sit and add phosphates and nutrients to the water?
Nori and nutrients
- Thread starter Breakthecycle2
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Fish_BowLisha
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Yep. Better to offer more times a day smaller amounts. They probably just do a lot of water changes to compensate.
Randy Holmes-Farley
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My Tank Thread
In the end, its only the amount added daily that matters, not what eats it. An adult fish excretes nearly all of the N and P in the nori as ammonia and phosphate. Even growing juveniles excrete most of it. Being eaten by a fish does not keep the nutrients out of the water. 
