You know, some rubbish that will cling on to your filter and heater underwater.
Yeah I do clean that stuff. But I know some people who just don't care about it. Especially if its just algae, its really not hurting anything... (I think) The king of diy thinks it gives a more natural look to aquariums if you leave it on the back of your tank (and Im sure it covers heaters and other things as well) But I guess if it is blocking filter intake then you should definitely remove it.
Yes, but I rarely have to do so anymore. I don't get as much algae, or debris onto my equipment.
Nope. My fish do the cleaning instead.
What stuff? Algae? Nah, I don't have any algae.
Nope, but my snails do.
On my heater that white stuff Should I clean that
Oh yeah, that gunk. Why would you even think you shouldn't? Yes, clean it off. It's harmless, but it's kinda ugly.
If you don't have snails or shrimp, go for it! It won't hurt anything.
Also, is it normal for my betta to be less active at night? And also how do you clean it?
Yes, it's normal. They sleep like we do, well kinda. Just use your finger and rub it off, or you can use a clean new toothbrush to scrub it off.
So it's harmless right? Because when I wiped it off it started breaking off and floating everywhere, then sank out of sight
Obviously its gonna be less active at night if its been active during the day betta fish are not nocturnal