Hi Ken
I havent had that experience or heard from anyone who has with prodibio - but the zeo people report that you can get a film of you OD with thier basic 4. Is it a film - like bacteria growth? Do you dose according to the recomendations? Do you dose any other carbon sourse like vodka? Are you dosing AAHC?
I'm thinking it could be an overdose sign like with zeob4 - but if its not - I'm sorry I dont know. How are the corals reacting? Any effects on the skimmate color? Is there a smell of sulphur?
Hi Simon
I didnt dose other carbon sourse Yes AAHC,the skimmate have a lot of carbon dust but all my coral react no problem ,anyway thanks
Ken