Fish Pee, Good For Corals

[Nonuser]

here is the study

http://phys.org/news/2016-08-big-fishand-peeare-key-coral.html

They do worse than pee in the water

 

[Nick James]

When I was a teenager my brother peed in my fish tank when I was on vacation. It Definately wasn't good for it..

Too bad he wasn't a big fish..