Creepy Explosion! Need Help id/actions Asap

[Drewbacca]

What is this? Killing corals. This is the final straw... if i cant treat/fix quick and lose coral.. I'm done after 7 years in. way too much time and energy spent and fam is about to say enough and i agree.
102.6 sal
78.2-78.8 degrees
PH 8.2- 8.3
8.5-9 dkh
420 cal
1375 mag
10 nitrate.
Been reading zero phos with cyano for a while,
Would clean sand and dose a small amount to make sure its in the water column. .01 - .02 but kept testing zero.

This tank setup was thought out and doing things right and redundant.. from time to diversity to flow and copapods and every param.. I finally had had things stable and added sps, and a little extra par had me battling cyano till i finally used chrmi clean for first time.. and look liked it ½ worked but i think that was only because it was Half cyano.. I added ocean direct sand in to replenish sand and some bacteria.. but i believe the lack of cyano let the other explode.. and the dust from the sand coated what was exploding and made much more visible.
Looks like a graveyard. & Corals shrunk.

Gonnies were well and growing...were.

Any help is greatly appreciated..
Esp.. ..help scrubbing!

 

[Lavey29]

Pictures under white light will help. Need full tank parameters also. Often using chemiclean for cyano bottoms out phosphate and nitrates resulting in dino explosion.

 

[ISpeakForTheSeas]

Plus one to the above - can you get some pics with whiter lighting? Parameters would likely also be helpful.

 

[Drewbacca]

Pictures under white light will help. Need full tank parameters also. Often using chemiclean for cyano bottoms out phosphate and nitrates resulting in dino explosion.

Edited ..some new pics. And param. Thanks.

 

[Lavey29]

Edited ..some new pics. And param. Thanks.

0 phosphate will lead to dinos. The sand dust coated everything on your rock so hard to say for certain but the stringy spiderweb appearance tends to make me believe it's dinos. Cheap microscope would help positive ID it.

 

[ISpeakForTheSeas]

Did this come on suddenly, or has it been growing/spreading for a while? Did it start all at once, or did it start in one place and spread from there?

Throwing out some ideas, maybe an invasive sponge with anti-coral chemicals or a bunch of webbing from a massive vermetid snail infestation?

Agreed that a cheap microscope may help with ID.

 

[taricha]

looks like a benthic (surface) bacterial bloom.
and coated by dust from new sand as you say.

 

[Drewbacca]

I Definitely have Dinos, I'm thinking the webby stuff is something else though as i believe there was some of it there when I treated the cyano with chemiclean.



This bucket was the first gallon ran through new carbon in reactor.. at the last chamber AFTER going through sock and then skimmer section and media tray with filter floss. WAS pretty clear clean looking water... but a few hours later..

 

[sfin52]

Thats dinos

 

[Gtinnel]

One of the tests for Dino’s is to take a water sample then shake it up and filter it through a paper towel. Dinos will not be filtered out.

The stuff in to cup looks like dinos to me.