Well, just last night i was observing my bettas and noticed that they both had a very fine white stringy substance hanging off of them, I have no idea what this is. I turned on the aeration higher and when i woke up the whole filter and corner the filter was in was covered in the stuff. I dod a 100% water change and am now treating them with maroxy, salt and a little bettafix, I also threw in a little maracyn 2. Could you help me? I'm really worried this could turn serious and harm my fish. My fish are acting normale and all, eating fine, have spread out fins and are always alert but i really want to get rid of this problem.:help2: