I used dinox before this thread was created but only used it for 5 days. No negative effects on nems corals clam or other inverts. But everyone's systems are different.BMW it's possible something else is going on, but I followed dosing to the tee with different batches. Two different nems reponded by in effect turning to mush. The negative response to treatment started very early. I also lost two heads from an otherwise healthy torch.
I had found similar reports online after seeing effects and wondered if other people had similar experiences.
True it could be toxins produced by Dino's or other factors. I just don't believe in coincidences.
The fact Leyth also indicated his nem looked bad....I'd be cautious.