Originally posted by RTR
A diatom filter is not intended for chronic use, it is short term clarifying filter. This has nothing whatsoever to do with routine tank filtration. Good grief. Diatoms are massively powered huge volume filters.
Much ado about nothing.
Vortex XL is 200 gph
I posted the link to this FAQ stating the same thing as manual in question , I wasn't talking about Diatom filters and like I said the manual I saw it in said turn off ALL your filters
The main reason we don't recommend it is because most fish will not be able to stand the strain of constantly having to swim against the strong current generated by the Diatom Filter or any other high flow filter for that matter.
Fish needs rest and may very well die if they don't get it. Naturally it is up to the individual to determine how much current his fish can tolerate and how much filtration is necessary, depending on the size of the aquarium and fish. I strongly suggest that all power filtration be turned off for a few hours each day unless it is particularly needed at the time