Thin clear "fur" on rocks...help

[rendogg]

I would tend to think that the acro was already dying and the bacteria was just colonizing new real estate. These bacterial mats do not actively war with coral, to my knowledge, they just occupy free space. I wouldn't be concerned unless it gets really thick. Have a look at the ingredients in the 2 part, there could be something in there that would promote a bloom.

 

[rendogg]

<a href=showthread.php?s=&postid=15321010#post15321010 target=_blank>Originally posted</a> by austin93
I have this stuff in plague proportions on the glass and the rocks. I run a neozeo system and I was originally told it was white dinoflagellates but was advised by others it was a bacterial bloom. I have discontinued my carbon dosing and have seen minor improvements. Very interested in the solution as its a major problem fo rme. I can not imagine that adding mb7 would help the situation, it would probably make it worse if its a bacteria. I will be following closely.

It'll take a while but your mat will subside as it starves from lack of a carbon source.... you already solved it, it's just a matter of time now. As said earlier, grazers will eat it too.

 

[gooyferret]

I had that on my rocks about a month ago....it just disappeared for me. Did seem the snails wouldnt really do anything about it, but it was gone and didnt last long. Sorry couldnt be of more help

 

[Gary Majchrzak]

<a href=showthread.php?s=&postid=15319831#post15319831 target=_blank>Originally posted</a> by LockeOak
Bacterial film, I think. It comes and goes in many tanks, not much that you can do about it and it doesn't do any harm. If you dive on an actual reef most of the otherwise bare rock is covered in these films.

ditto

 

[njdevilsfan]

<a href=showthread.php?s=&postid=15321033#post15321033 target=_blank>Originally posted</a> by thorsky
My sandbed in the display ranges from 2 - 4" (30G display). The sandbed in my fuge area is more like 4-5" and fuge is about 18" x 18".

I do use Kalk for topoff and dose a very small amount of 2 part to keep everything in balance. The appearance itself doesn't bother me as it's just about un-noticeable, but as I mentioned, it seams to have spread to one of my acros and looks to be suffocating it.

well i can tell you my hunch was my sand bed
my problem started to go away when i started adding to my sand bed
i had a 2 to 3 inch in my 210 display
i wet dry vacumed my miracle mud from my sump and added a power head for circulation down there
then i added 20 puonds of sand every 10 to 14 days to the display
about 4 to 6 weeks into it i noticed the stuff (whatever you want to call it ) start to go away
now i know i did a ton of stuff to try and fight this but like i said my hunch was the sand bed had gone bad feeding this hellish stuff
on a side note several people in my local had the same type of stuff and we all had started using that new food roti feast and their other products..we all stopped using it but .. it could have just been a coincidence
sorry for being so long winded

 

[suta4242]

I had an explosion of this stuff for about a month in a coral QT for stoney NPS. I was feeding lot of raw salmon & roe daily. No doubt in my case the excess food caused a nutrient issue and favoured the bacterial film. Once I started using light in the tank it went away - or should I say was outcompeted by cyano, which eventually was outcompeted by macro.

 

[OneReef]

My white film on the back of my rocks popped up after I dosed Prodibio BioDigest and Bioptim a couple of times. I am assuming that is where mine came from.

 

[thorsky]

Did any of you find it starting to cling to your corals? I'm starting to stock this display and one of my starter acros is not doing well and it looks like this stuff is on it. I'm concerned it's suffocating it. The other possibility is the coral is RTN'ing and the stuff is clinging to the skeleton.