<a href=showthread.php?s=&postid=14353195#post14353195 target=_blank>Originally posted</a> by Jeff
Its common for chaeto growth to slow way down and/or stop. I have the same size ball of chaeto that I did a year ago. i should really just throw it out. Without nutrients, the chaeto stops growing which is not a bad thing. As long as you dont go too low you will be ok. Keep an eye on sps color. I agree with Genetics when he says to feed more if this happens. Its the same thing when dosing v/s/v/, ZEO, Prodibio, etc with the ULNS (ultra low nutrient system) people, the drop in color is caused by nutients actually being too low.
The use of GFO and carbon has no real impact on this, they dont effect nutrients in the same way.
I feel that this is a good indicator that you may be dosing a bit too much and that dropping down to around 5 ppm might be the way to go if not there all ready.