Lesson Learned: Canisters suck!

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Carefree_Dude

Piranha
MFK Member
Feb 4, 2011
1,226
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Portland, OR
I recently set up canisters on my aquariums. One of them was a new tank with nothing in it yet. I tossed a seeded sponge filter onto the intake inside of the aquarium to help it seed faster. I also tossed in an oscar i was quarantining. a few hours i check, and cant find the oscar anywhere. Well, the sponge filter didn't block off the bottom of the intake, only the sides. The suction on the bottom was so powerful, it sucked up the oscar and managed to snap it in half inside the sponge.

what a sad way to go. it was a pretty oscar.


Oh, I'm not saying canisters are bad filters, but that their power of suction should not be underestimated.
 
Wow is all I can say about my canister filter, it's excellent and no problems with fish. Marineland Canister Filters are worth every penny. As powerful as the filter is ,never had any fish get stuck, not even a small oto. What kind of filter were you using ?
 
An open ended sponge slipped over the slotted in-take tube of any type of filter would drastically change the flow of water going into the tube. Think of the spray bar on this type of filter, if you removed that spray bar and allowed the return water to enter the tank un-diffused you'd have a whirl pool. If you impede the flow of the intake and concentrate more of the intake to just the end of the tube rather than the entire (diffused) 2-3 inches of slotted intake strainer even a fairly strong swimmer could get sucked in.
 
It is possible that the oscar died(you were quarentening) and then got sucked up the filter..
 
I think everyone needs to realize that the title of this thread needs to be taken literally, although their high turnover rate is one of the main reasons that they're more beneficial than most HOB's.
 
how long after you put water in the tank did you wait to put the osscar in.... regardless of how long you waited after putting in the seeded sponge filter
 
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