Hello all. So, I have a new betta fish Emperor Catullus. I decided to upgrade from my previous 2.5 gallon to a 5.5 gallon. I got new plants (silk) and a moss ball. I've had Catullus for a week, so today I did my first weekly 50% water change with a gravel vacuum (which is wonderfully convenient).
When I added new water, white flaky things started floating around the water. I'm assuming this was settled at the bottom of the tank. It made the water fairly dirty, so I decided to remove the stocking I had covering his filter and let it run for about an hour to clear up the water (Catullus was not in the tank).
After an hour, I returned to find pristine, clear water in my tank. I decided to take out the filter to rinse it off. When I did, green gunk came out of the filtration slots. I sucked this out with an eye dropper and took the filter to the sink to clean. When I took it apart, I saw that the sponge filter inside and the filtration slots that suck in the water were clogged with the same green slime.
I'm assuming my moss ball caused this. This is my first time having a moss ball, so I'm not sure if this is normal. I thoroughly rinsed out every part of the filter and put it back in the tank with the cleaned stocking. When I started it up, it spit out its normal white bubbles, but nothing green, thankfully.
Is there something wrong with my moss ball, or is this normal?