sponge size adequate for 10gal tank?

[andreahp]

I am still in the process of making a DIY sponge filter for a QT - my question is how do I know whether the size of the sponge will provide adequate filtration for a 10gal QT? I don't have a picture of what I'm planning to use - it's a utility sponge I got at Home Depot and I cut it not quite in half (using the larger half).

[850R]

I am still in the process of making a DIY sponge filter for a QT - my question is how do I know whether the size of the sponge will provide adequate filtration for a 10gal QT? I don't have a picture of what I'm planning to use - it's a utility sponge I got at Home Depot and I cut it not quite in half (using the larger half).Most likely it will be absolutely fine though if you had posted measurements it would be easier to give a definitive yes or no
...Just saying.

[andreahp]

Most likely it will be absolutely fine though if you had posted measurements it would be easier to give a definitive yes or no
...Just saying.
Thanks...these are not things I think of doing. The sponge is almost 5 1/2 inches long, almost 4 inches high and 2 inches deep.

[850R]

Thanks...these are not things I think of doing. The sponge is almost 5 1/2 inches long, almost 4 inches high and 2 inches deep.

Sounds ok to me. The ones i use are about 4" square [on bigger tanks mostly] Just be sure give it a cleaning by squishing it out in old tanks water on a regular basis.

What are you going to use to weight it down?

[andreahp]

Sounds ok to me. The ones i use are about 4" square [on bigger tanks mostly] Just be sure give it a cleaning by squishing it out in old tanks water on a regular basis.

What are you going to use to weight it down?
I will probably get silicone adhesive from somewhere or crazy glue and attach it to an extra ceramic floor tile I have from my bathroom. When you say 4" square on "bigger tanks" - how big are we talking? And is the sponge the only filtration you use on those tanks?

[850R]

I will probably get silicone adhesive from somewhere or crazy glue and attach it to an extra ceramic floor tile I have from my bathroom. Do check to make sure the glaze is non toxic
When you say 4" square on "bigger tanks" - how big are we talking? And is the sponge the only filtration you use on those tanks?
Mine are the 'Black 20 PPI' listed on this page. ([Only Registered Users Can See Links.])

Until very recently I had one in [I]each back corner of my 90G [now just one], & One each in my 55G, 29G[Removed during remodel - not sure if it will fit now lol] & my 20G.

The sponge filters are not the only filtration in any tank I have regularly running, They are additional filtration and used as a cycled filter for when I need a portable BB colony to move to the QT tank.

When I am running the QT/ER tank it is primarily filtered using only the sponge.

[andreahp]

I was originally going to run the sponge in my main tank for a few weeks for QT purposes until I discovered I couldn't keep it submerged (lol). Because I am impatient to get more fish due to a pause caused by ich, I got a hold of a new box filter someone was giving away on freecycle so I'm running that now and it will be ready by this weekend for the QT(has been running for 3 weeks) - plan on setting up the QT Sat night and getting more fish on Sunday. Once the box filter is out of my main tank, will put sponge in there.

[andreahp]

Forgot to ask - if the floor tile is glazed, how would I find out whether the glaze is non toxic - or should I just silicone some rocks to it?

[850R]

Forgot to ask - if the floor tile is glazed, how would I find out whether the glaze is non toxic - or should I just silicone some rocks to it? Prob have to check the manufacturers MSDS [Material Safety Data Sheet] I'm not really sure of another way but it is possible that there are some things in glazes that are not fish friendly. It may be paranoia lol but I am cautious of what I put in my tanks.

If you have a Home Depot nearby mine sells these ([Only Registered Users Can See Links.]) for 2 or 3$ apiece and I score them and cut/snap them in quarters [or as needed], Drill if needed for tie downs & they are perfect for holding down driftwood or sponge filters.