Sand Substrate with undergravel filter?

[Matak]

I use a fine & medium gravel in my reverse flow UGF. The fine gravel is about 1/16" or larger, and the medium gravel is about 3 times that size. Just big enough not to pass through the grid plate.

BTW, I am with RTR on the RFUGFs. I have had great success with mine.

 

[Malachite]

I use a fine & medium gravel in my reverse flow UGF. The fine gravel is about 1/16" or larger, and the medium gravel is about 3 times that size. Just big enough not to pass through the grid plate.

BTW, I am with RTR on the RFUGFs. I have had great success with mine.

Thanks. So where did you find your gravel? That sounds like a size I could deal with.

Is there anything special about a RFUGF or is it just a normal UGF with RF PH's?

 

[RTR]

They are prefiltered, so no mulm in the gravel or under the plates.

http://www.aquasource.org/CMS/modul...=Sections&file=index&req=viewarticle&artid=17

 

[Matak]

I work with decorative gravel, so that's where I get mine from. I tried to find some on google for you, but came up empty handed. It is an industrial filter gravel. I don't have any bags with me at home, so I can't give you the supplier, sorry.

 

[Matak]

Ok, try entering this word string on google: filter gravel -fish -aquarium mm
There are some suppliers that have the proper size media. You want gravel in the 2mm to 4mm size range.

 

[adamdwalker]

simple answer is no

 

[Malachite]

Ok, try entering this word string on google: filter gravel -fish -aquarium mm
There are some suppliers that have the proper size media. You want gravel in the 2mm to 4mm size range.

Thanks for all the help digging that up. I'll check it out and see what i can find.