Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/)
-   Beginner Freshwater Aquarium (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/)
-   -   advise on tank heaters plz (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/advise-tank-heaters-plz-105347/)

ashley9333 06-26-2012 09:17 AM

advise on tank heaters plz
 
so i have a 75gal tank (u can see pictures of it in my album) im going tropical freshwater fish with is. i have 3 small heaters they are not turned on yet. but my question is the way my tank is built my water does not reach the water line on the heaters the water is about an inch or so to short for the water line. if i turn them on what will happen? also i have a homemade filter so i cant add more water it will just run over into the over flow. if u need more pic of the set up let me know i can take more pics and show u what i mean

Geomancer 06-26-2012 09:24 AM

Pictures would help...

Are these ancient hang on back heaters or something? Almost every heater sold today is submersible (completely). They have a 'fill line' on them for two reasons. One, it is requried by Canadian Law, so if sold in Canada it must have that on it. And two, that's the minimum amount of the heater that must be underwater to prevent the glass from cracking.

So what will happen? As said above, you risk the glass cracking because of the heat differential.

If these are submersable heaters with the suction cups on them, just lower them down further, or change their orientation so they are completely under water (for example 45 degrees, or horizontal).

ashley9333 06-26-2012 09:33 AM

lol well i got the old ones that hang on the back lol. i will try to move then but if i cant get them to work then i guess its new heaters


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