Hi,
I'll try to answer the all questions in one post.
Dino X and what it treats
Our product is labeled as Dino X, but should not be considered as a solution for only Dinoflagellates. It is also a treatment for various types of algae such as hair algae, bubble algae, bryopsis, etc. As I mentioned in my first post, some algae requires more than one treatment period.
Dino X will treat most types of dinoflagellates. There are however, some types that release toxins when it begins of die off. With so many types out there, it is difficult to ID exact which one is toxic and non-toxic. For this reason, it is best to siphon out as much as possible before beginning treatment.
Product effectiveness
Some algae can be more stubborn than others and therefore the effectiveness of the product will depend on the current condition of the tank. This includes, water quality, feeding habits, current amount of algae present, quality of cleanup crew, condition of the live rock and sand, etc. Following our user guide is also very important.
For severe cases of algae outbreaks, we recommend users manually remove as much algae as possible before beginning treatment.
Risk of overdosing
It is not good to go above the recommended dose because then you risk harm to your livestock.
Aquattro,
When there is a good amount of algae present in the tank, much of the PO4 gets consumed by it. This causes false readings in test kits. It is possible that the algae is being continuously fueled by the PO4 and NO3 stored in the live rock and sand. Can you post a photo of what your rocks look like?