A member on here sent me a PM stating that it may be a bacteria bloom. They said they experienced the same exact thing and that is what it turned out to be. Although I have already gone through my cycle period.
Hi, Welcome to R2R !
Bacterial blooms can happen at any time, all they need is a food source.
These aren't the same kind of bacteria that constitute the tank biofilter, that convert NH3 to NO2, and NO2 to NO3.
These bacteria are heterotrophs, so they take that NO3 produced by the other bacteria, and combine it with a carbon source to grow.
This is the basis of carbon dosing to reduce NO3 and PO4; the bacteria take up the nutrients, and then you remove the bacteria with a skimmer.
But if you overdo the carbon dosing and the bacteria proliferate too much, you get cloudy water, and sometimes sick animals.
Since you're presumably not carbon dosing, adding high quality GAC, doing water changes, and cutting back on feeding should fix it.
If you're dosing any amino acids or other supplements that contain organic carbon, probably should stop those too.
And yeah, I thought that looked like a small yuma or other mushroom in the first vid.
An unhappy one; they don't like being jostled around like that, and it's probably not well attached.
Yumas can be ridiculously finicky even in excellent conditions where everything else is thriving.