02-26-2013, 03:13 PM
Join Date: Jan 2004
Location: Dallas, TX
iTrader Positive Rating: 100%
| | Re: Killer heater - how to prevent its rampage?
I have had experiences just about freezing all my 2000 or so fish in the fish room. Forgot the window open during winter. Temps outside dropped during the night too. Temp in the room dropped to 50F.
The water in the tanks had gotten to 55F. All fish survived except cories. Some fish fell into a stupor (no movement, no reactions) but came 100% back after the water temp raised back up.
I had various rasboras, loaches, badis, gobies, and several other species. Rasbora maculata, that flimsly looking thing, just lays there looking dead at 55F but once the temps are normal you'd never tell what happened.
Main thing is - DO NOT drop the temp too fast. And DO NOT raise it too fast (my first urge was to add hot water to the tanks). My experience was with the temp dropping from 76F to 55F in the course of about 12 hours.
And yes, an expensive German heater makes a whole lotta sense now to me too. Had enough issues with other brands, even not cheap. One super cool kind of damage that an overheating heater did to my 55 gallon tank was to soften the filter hoses. When soft the ouflow hose had come offof the filter fitting. The inflow hose was soft but stayed put. And my inflow was close to the bottom... The canister had been shooting water at the wall under the tank. The most efficient tank drain short of the glass breaking. (That was the time when aided by a shop-vac I discovered that the new looking carpet in my fancy apartment produces dirt as black as motor oil. No more carpet for me ever! 50 gallons of water that have to be sucked out of a carpet will change your mind anyway.) All that fun happened with a Titanium heater - the ones that are all metal and with a thermostat dial outside of the tank.
Last edited by niko; 02-26-2013 at 03:19 PM..