The same is happening on the other heater (Opposite side of the tank) and both of the airline tubes. The tubes like like they have spores on them instead of the slime/hair growth on the heaters. They aren't bubbles, I checked. The tubing is silicon, I've used it before without problems in my other tanks.
This tank is huge, and took forever to set up, I'm desperately hoping this is a temporary thing..especially since the fish going into it will be on the pricey side.
The pale rim around the suction cup is the slimey stuff:
The dots are the spores. They are raised and look hairy:
The other heater is getting white 'hair' in the exact same place, but it's too small to photograph at the moment.
EDIT:
This guy on YouTube has the same thing, just more mature, on his suction cups. I might consider removing mine altogether.
https
/www.youtube.com/watch?v=I3eBumVVoYI
Searching through other forums (I hope I'm allowed to post them here, I check the rules and it seemed okay) people have the same problem. Air tubing, and suction cups only.
http/www.aquaticcommunity.com/aquariumforum/archive/index.php/t-63606.html
http/www.ukaps.org/forum/threads/substance-id-growing-on-suction-cups.26375/
http/forum.simplydiscus.com/archive/index.php/t-37338.html
It's referred to as a bacterial buildup, harmless, or "mystery gunk". I'm going to go violently scrub every surface it's touched.
If I need to remove the links, I will.
