I'm fairly sure some of the cleaning products we use contain alcohol, but I will look into them. No air fresheners. I will say on occasion I indulge myself in an alcoholic beverage in my office.
Well let me start off by saying you shouldn't be denied a little levity in your life. We aren't talking prohibition here. Only when it comes to the aquariums.
Do you have night staff that clean the office regularly? Possible source of VOC's overnight?
The places I always noticed the slime building the quickest were those that were most exposed to high flow, air or both such as: overflow boxes (combs), filter material that is exposed to air, skimmer and skimmer output, area in sump where agitated water falls into, socks, powerheads, return pump output etc.
The nutrient parameters in this tank were never great for 8 years (PO4~.5, NO3~ 25-50) until all of a sudden over a 8 month period they went to near undetectable on Salefert(sp) tests. Then the slime began for near 2 years. Nutrients never went up but skimmer always was full. corals faded. Fish okay. Slime invaded everything and black sponges grew under all rock work.
Can only surmise that you are getting it in one tank over another because some physical difference in the way the tank operated or an environmental difference as in, the unaffected tank does not get the same gas exchange or exposure to the (alcohol) in the air. But I'm sure you've eliminated those possibilities already.
Keep an open mind and you will find your demon.
Good luck
I wouldn't worry about an alcoholic beverage. Given that there's another tank close by I'd look for some other cause than aerosols.
If it was the one batch of salt, the problem should have resolved itself, but you could try some CupraSorb and a PolyFilter if you're worried about metal contamination.
Is the second date supposed to be Nov 25?
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Jonathan Bertoni
.I rarely even test the other tank, because just by looking at it I know it's fine, but I still test on occasion. However, my other system I test rigorously. Even with perfect parameters and being relatively slime free, I know something is wrong.
Cleaning the tank might put a lot of organics into the water column, or interfere with the filtration, depending on what exactly is done. A temporary slime outbreak would be a reasonable possibility, but it should be gone fairly quickly.
I have done quite a bit of researching threads on this and one almost constant is dry rock and Dr Tims all in one. So my theory is the bacterial bloom is possibly kickstarted by a carbon addition, either intentional or not. An imbalance in bacteria is either already present or is created. This bacteria rapidly consumes not only oxygen, but nutrients, and makes it difficult for our desired bacteria to get the food they need. This makes it difficult to beat it. I am wondering if there is a strain in Dr Tims that is prone to this outbreak, or if the strain in Dr Tims is prone to being overrun by some other bacteria.
My solution was allowing the bacteria to clean up the excess organics to start to starve itself, and aggressively adding bacterial diversity. I'm hoping that this will make my tank more robust. I also have plans of adding a live sand activator pack along with some macro, and copepods/amphipods from IPSF in hopes of further improving biodiversity in the tank.