It's never going to end...

[rennjidk]

So far they have survived a 5 day blackout while dosing peroxide, aggressive skimming, UV filtration, bacterial dosing, silicate dosing, manual removal, and lots of shouting. I'm giving the carbon dosing at night a try, and if that doesn't work, I'm out of ideas.

 

[killer2001]

Pics? I've been doing the same except no h2o2 dosing and they are pretty much kept in check, I feel like I'm slowly winning the battle.

 

[CoralB]

So far they have survived a 5 day blackout while dosing peroxide, aggressive skimming, UV filtration, bacterial dosing, silicate dosing, manual removal, and lots of shouting. I'm giving the carbon dosing at night a try, and if that doesn't work, I'm out of ideas.

Are you dosing nitrate and or phosphate while you doing everything you listed above ? I would just bet that you are knee deep in Dino’s because you zeroed out you nitrates and phosphates. Also have you identified what type of Dino your dealing with ? .

 

[Jason Scalise]

have you identified the species?
if not, that would be helpful to refine your tactics.
A $20 microscope will do it.
as you probably know, some live in water column and some in substrate.
the black out will help encourage those to migrate to the water column in many (not all) cases.
once in the water column, they are more susceptible to UV tactics....whereas when stuck in the sand bed/substrate, not as much.
lots of posts and advice on this site on how to attack but all methods are challenging and take time and need patience.

In my case, I battled a serious case of Amphidinium which is commonly in the sand bed.
I battled and battled, chemically, UV, etc.
Livestock was always healthy.
I ended up removing the sand altogether and swapping out my rock (had been in there for 2+ years) for new live rock.
That solved it for me. It never came back (obviously, multifactorial and lots of possible coincidences). But I feel I improved my micro flora foundation by doing so.

 

[rennjidk]

Are you dosing nitrate and or phosphate while you doing everything you listed above ?

Yes

 

[rennjidk]

have you identified the species?

They are Amphidinium as well.

 

[rennjidk]

Pics? I've been doing the same except no h2o2 dosing and they are pretty much kept in check, I feel like I'm slowly winning the battle.

 

[killer2001]

When you are scrubbing your rocks, and turkey basting your sand, use clothesline clips to hold filter floss against the glass, I would also hang filter floss from my lid daily with a ziptie for a couple weeks. Dinos stick to filter floss very well.

Here a video of my tank about the ugly phase I'm currently going through: