anyone with a magic cure or answer?

[kwirky]

Originally Posted by Delphinus

Based on this description alone, without question, you had dinoflagellates.

I nearly tore down the tanks I had it in too when I was fighting it. It's demoralizing.

I think the problems I had can be largely attributed to buying livestock and rocks from people getting out of the hobby. I'm sure a fair portion of these people are getting out due to pests they were unable to control. Lesson learned I guess.

[christyf5]

Yeah I battled this stuff for a year. It would come in cycles, I'd turn the lights off etc. It would be gone for about 2 weeks or so. I'm pretty sure that my huge caulerpa field is what was feeding it. The dinos would appear, I'd do my no lights trick, they'd go. Then the caulerpa would grow like crazy so I'd rip it out then about a week later the dinos were back. I could calculate to the week when they'd appear. It was pretty bad. Eventually I powerwashed all the rock to get the caulerpa off but there was no stopping the dinos at that point. I think they got resistant to all the stuff I used to do to them. Eventually I ripped out my aragonite sandbed and replaced it with sugar sand. Sure enough about 4-6 weeks later the dinos were back. It wasn't until I totally shocked the system by taking the sandbed out completely that the dinos were finally gone for good. I do sort of freak out when I see bubbly algae in my tank but its usually the result of microbubbles sitting on something. Its like 'nam flashbacks for me

[Kryten]

I just started dosing with kalk, we'll see if that helps any. I suspect this may be what I have too.