Hey guys
I know this is a goldfish forum but through previous experience I know u know a little about Beta fish too. I just got my new Beta fish today and its great

). Certainly active but I need to know, do I turn off my undergravel filter or leave it on all night? I am about to go to sleep now and I really need to know as I am not sure if the noise of the filter prevents it sleeping

s. I also got this other fish with my Beta, I was told if they were introduced together then the Beta would not harm the other fish but I dont know what the other fish is

s. I know its a tiny little fish which is almost see through but there is a black line going from all the way down its body. All it does is stick to the glass and suck off all of the rubbish and it does the same to the gravel. I know beta's can live without the filter for a while but can this fish? Roger