Concerning sand...

[Marconis]

I have PFS in my tank, and am curious about the cleaning. I have been reading that it can trap gases. Would a weekly gravel vac of the sand help prevent these gas pockets? Should I buy a cat fish?

 

[rich311k]

Just take a chopstick or something like it and stir it up every few weeks. Malaysian trumpet snails are good for keeping it stirred as well.

 

[Marconis]

Thank you

 

[Fishyfanatic]

Catfish (or other bottom dwellers) will only disturb that top layer of sand. MTS are great for stirring it to the bottom. I also stir the sand by using the gravel vac.

 

[theotheragentm]

What do you mean trap gases?

 

[Marconis]

Idk, I was reading on various websites and that is what they mentioned.

 

[Sicklid]

That really only applies to sand that is very flat and small, as it compacts like cement and can go anaerobic underneath... Round pebbley-type sand is less of a danger. You have to circulate fresh water there to prevent this... Like by poking it with a chopstick. Or getting snails that burrow... like those guys said.