Feeling stupid

[Arizonagrace]

I have a 10 gallon fry tank complete with baby and 2 juvenile fry. I was worried about the filter and finally found a sponge filter. This sponge filter is the type that is a triangle and sits in a corner, and hooks up with the airline tube.

My problem? It is nicely sitting in the corner, all hooked up. Yes, I am running the other filter until it gets established. I can't, however, seem to get the thing to lay on the bottom. It wants to float to the top. I currently have a decoration sitting ackwardly on top of the filter to hold it down. I am worried that the decoration might be knocked off and break the bottom of the tank. The tank is sitting on a matching metal stand. I thought about putting a suction cup to hold it, but can't figure a way to do that.

Any suggestions?

 

[HandsomeDevil]

Have you thought about maybe gluing a piece of slate to the bottom of it with some silicone?

 

[Arizonagrace]

I hadn't thought of that. I am not sure if the glue will stick, but can try that. If I do that, I can probably still rinse it out.

 

[chesterthehero]

just tie it to the lil nub on a suction cup with some fishing line

 

[MikeOway]

I would put either some carbon/bio rings/ or gravel in the filter and it should weight it down.

 

[cassharper]

Mine have usually stayed on the bottom, just make sure after it is underwater you squeeze all the air bubbles out. Google DIY Sponge filter, there is a homemade one out of an empty flakes container and gravel. I have used it a couple of times and works really well.