Ok, I filled the tank after putting in the gravel etc. I put in the heater and turned it on then POOF (lol) it cracked! Any explinations as i have only 1 more of these heaters spare from the kit i got off my dads mate.
I've done the same thing, a fish of mine got trapped in a filter and I was in a hurry. I pulled the heater out and forgot to switch it off, by the time I put it back in it was so hot that it shattered when it hit the water. Glad to hear you've sorted it out.
Well just gotta buy a new heater as i got two 3ft by 1ft tanks (see newbies intro) then just gotta decide what exact fish i want! Pics coming soon! lol