New member
I hear that iodide is good for cheato, correct? Well I bought a bottle of Kent marine Iodide sub. On the directions it reads: Shake bottle well and add 5ml per 50gl every week or 8 drops per 50gl per day. What's a drop? They suggest daily dose. I know it would be 5ml divided by 7 that would be like .71ml per day, right? Anybody do daily dosage? And if so how much do you add? Thanks....:thumbsup:
Perhaps iodine may help some with some macroalgae, I haven't seen much evidence for chaeto though. Dosing iron may help the most with chaeto, provided your nitrate level is not too low.

Randy Holmes-Farley

Reef Chemist
Premium Member

FWIW, most of us who dosed iodine found it made no difference to anything in our tanks when we stopped. The only exception may be certain gorgonia that have a known requirement for iodine.

Happy reefing. :)