PrObLeM_ChIlD
Fish Fanatic
this morning i work up and found little white lines about _ this long on my tank glass in the front, i am not sure as to what they are, they are white and very small.. they are in my guppys tank.. i don't want this to harm them.. anyonw know what it could be.. also my filter wasn't running all last night so i was wondering if it could just be some odd kind of alge build up