trotty said:buy another one..... You may be able to run some glazing silicone over the crack. as there is not much water pressure. Make sure the glass is dry and leave for 48 - 72 hours for curing time. Make sure also that the silicone is suitable for aquariums as some chemicals will bleed into the water and worse still break the bond between the glass and silicone and leak.
malkore said:yeah, a 3gallon bowl should be $5. PetCo regularly sells 10gal tanks for $10.
however I really don't like any tank smaller than 5gallon.
I'm hoping this is just a betta tank, one fish only?