Lately, I've been noticing a lot of gunk that forms at the top of Astaire's water...not Stamps' tank oddly enough, seeing as I change their water at the same time in the same way with the same size tank and decorations... o_O;
I do skim the gunk off (they look like little clouds at the top...it actually looks like bacteria that sits in stagnant water), but after a few hours, it's back! I actually skim maybe twice a day and it still comes back within a few hours. So, I was looking through petco and petsmart's inventory online and I came across skimmers..which I assume is like a waterline vaccuum?
Anywho, does anyone use skimmers? And if so, is there anything for a 2.5 gallon tank that works decently?
NOTE: I do not use filters. I tried it before and they really, really didn't like it, baffled or not. ><
Also: Because of both betta's recent ailments, I do 100% water changes daily, and have cut down to 50% multiple days a week and 100% at least once a week, or more if it looks like it's necessary.