i was watching tv yesterday and noticed a sizzling/bubbling sound in my reef tank. i looked over and bubbles were coming out of my heater every couple seconds. it took me a while to notice, but then whenever the heater kicked on, instead of the orange light, it was a bright flash, and it was boiling the water! i unplugged it and grabbed it out of there. apparently it had cracked somehow and water was getting in, the heater was turning on and just boiling the water. the heater smells awful right now, like burning plastic. the water did smell like that but it doesn't anymore. i quickly ran to petsmart (the closest pet store...well petco is closer but i hate that place) and bought a replacement (different brand but good price) the one that broke was a marineland visi-therm deluxe 200 watt submersible. i still dont know what cracked it. the new one i bought is a top fin 200 watt submersible. i'm just hoping this one doesn't break. anywho, i was wondering if anything harmful could have happened to my tank while the cracked one was boiling the water? is there anything toxic in the heater that could have leaked out? there are no animals in the tank, aside from the pods, worms and whatnot that were on the rock.
