View Full Version : Turn Filter Off Overnight?

03-21-2010, 10:10 PM
Hi i have a 15l Biorb fish tank and in it are 2 fantail's 2 lion heads and 5 little fishes :) ( they are all cold water fish )

Now im new to this but my filter plug is dangerously hot and i dont want it going on fire while i sleep Can i turn it off over night to allow the plug to cool then turn it back on when i wake it will be off for 8-9 hours

Thanks Fantail

03-21-2010, 10:15 PM
That would be qa bad idea. Your fish need the filtration and wioth that stocking they need all they can get. Filters are made to run 24 hours a day. I wonder if something is wrong with the unit.

03-21-2010, 10:17 PM
Thanks but the plug is really really hot would it do that much harm for one night while i sort out a solution

03-21-2010, 10:18 PM
Is the filter running right? Making noise or something?

03-21-2010, 10:19 PM
Yes it running fine i dunno whats wrong with it but it feels really hot

03-21-2010, 10:22 PM
Unplug it then, just for safety reasons. I wouldn't plug it back in at all, go and get it exchanged. No point risking a fire. If you have an air pump, just add an air stone to the tank for the night.

03-21-2010, 10:26 PM
I only have one pump ill unplug it and get it sorted tommorow thanks guys thumbs2:


03-22-2010, 12:06 AM
Isnt that a 3 gal tank?Do you really have that many goldfish in such a small tank?You need at least 20 gal to keep those fish.
Are you referring to the transformer plug that goes into the wall getting hot?If so thats quite normal for plugs like that.If you are talking about the motor part on a hob filter then that isnt good.

03-22-2010, 01:07 AM
You need a 55 gallon to house all those fish comfortably. If you've had them for longer than three months, you've probably already permanently stunted them.
The filter off during nights regularly will turn VERY dangerous will all those fish in that small tank.
Your choice, though. SBN. If it was me I'd risk killing the fish too to avoid a fire. Get an electrician to look at things if any other plugs turn hot when you put them in there.

03-22-2010, 01:52 AM
how long have you had the tank? Has it been cycled?

Not to have beat a dead horse, but Smaug and Void are right... with that many fish in that small of a space with no filter you're teetering on the edge of disaster.

03-22-2010, 04:51 PM
If its anything like my bio-orb, the power unit runs both the air pump and the halogen light. It gets warm, thats expected when that much power is going through it, but not too hot(if its too hot to touch something is wrong). If it really concerns you, exchange it, but a few things to note-

With the pump off, water is going to flow into the air pump. Not might, but thanks to the awesome bio-orb construction, it will. Raise it well above the water level and check it before you turn it back on. Or just remove the pump and tie a knot in the air tube.

With the air pump off, they wont have any air. Just throwing that out there, as oxygen is important to most life forms.

Have you tried running it without the light on to see how warm it gets?

Not gonna even touch the fact you have what will eventually be 4+ feet of fish in a 3g...

03-22-2010, 05:19 PM
Isnt that a 3 gal tank?Do you really have that many goldfish in such a small tank?You need at least 20 gal to keep those fish
I was hoping someone would comment on the massively overstocking...

03-22-2010, 05:53 PM
The stocking would be more cause for concern than the plug in my opinion.

Your cute little Fantails will eventually become:


These two fish are getting too large to even net properly. I have had to rehome my 4 Goldfish into a 90 Gallon tank with a common Pleco and 7 white cloud minnows.

03-22-2010, 06:10 PM

This is Bob. Bob is 9" without his tail. Your bio-orb is about 12" wide. the opening is about 4". You get the idea.:hmm3grin2orange:

08-29-2014, 08:25 PM
I want to know more about the hot "plug"!

Is this just a regular cord plug? Or is this a wall transformer/power supply aka "wall wart"?

If a regular power cord plug gets hot, it means that the cord is damaged right at the plug (not uncommon if the cord has been unplugged by yanking on the cord instead of grasping the plug itself) OR the wall socket (receptacle) is loose and not making good contact, OR there is a large overload.

All of those conditions are extremely dangerous. An electrical connection should remain reasonably cool. Heat at a connection point indicates overcurrent or high resistance at the connection. This is how many so-called "electrical fires" are actually started.

I hate to be cold-hearted about the fish, but if you burn down your house or an apartment building, and people die or are injured, the fish cruelty will seem quite trivial in comparison.

On the other hand, a power supply or transformer may get warm under normal operation.

If this is just a power cord plug and not a transformer or power supply, unplug it immediately and inspect the cord for damage at the plug. If it's OK, is the receptacle loose? If so, the receptacle needs to be replaced before using it again.

If this is a power supply or transformer, how hot is "hot"?

If in doubt, be safe until you have it checked by someone qualified to judge the situation. Sort out the electrical safety issues first, then deal with the fish issues.

08-29-2014, 08:28 PM
The original thread is 4 1/2 years old

08-29-2014, 10:20 PM
The house already burned down, thus no replies from the OP. :)

Suckered in by a zombie thread! Hah!