Trouble holding vacuum
I have HOT Magnum 250 filter that has been in use for about 1 year. I have not had any issues with it, until recently, and it keeps my tank very clean. It will be working like normal, and then it appears to push more water out of the filter than it takes in (I assume) which causes the tank water level to rise slowly, and also causes the filter to be really loud, because it is circulating a bunch of air. I have had it be loud from having air in it before, when I first got this filter and didn't quite know how it worked. Once I learned that you have to fill the filter very full before putting the lid on, then I never had an issue. But now, it seems to create the same problem, ie the filter isn't full enough, all by itself. How can I fix this?
Aquarium Type: Saltwater
Aquarium Size: Small (20g or less)
asked 11 months ago
San Diego, CA, USA
on HOT Magnum® Filters
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Make sure that the canister is level with the tank. If the tab on the bottom that sits against the tank is pushed in all the way and the canister is leaning top side farther away then the bottom side this will cause an air gap to form and stay causing noise as well as the water level in the canister to drop where it is on but no longer circulating the water. I hope that helps.
Aquarium Type: Freshwater
Aquarium Size: Mid-Size (20-60g)
answered 9 months ago
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Make sure when it does this, that the water level in the tank is at least an inch above the strainer. If it is getting low, it will cause the filter to try to lose its siphon.
Also, if you have an air stone or bubbler of some sort in the tank, make sure it is not near the intake tube.
answered 11 months ago
0out of 1found this answer helpful.