Can too much filter current stress fish?

I just replaced my old Whisper Jr filter with an AC 150. The tank is
10 gallons. The Whisper shot its output stream across the top of the
tank and the current broke against the front glass. It looked like I
got a good amount of filter output from the Whisper when the media was
clean but I did not have excessive current flying around in the tank.

The AC150 basically drops its output down into the tank at a much
steeper angle and the current is breaking at the bottom of the tank.
This is creating a LOT more current inside the tank. At full blast
the plastic plants at the bottom of the tank (near the filter) are
flapping in the current and my Neons get tossed around when they go to
the side of the tank with the filter. My fantail Guppies seem to seek
out the full power current & play in it.

The main problem is where the AC 150 creates its current (at the
middle and bottom of the tank). I can turn down the flow on the
filter input and decrease the current somewhat, but when I run low
flow I am concerned that the AC150 may not be pumping as much as my
old Whisper was pumping. I think the Whisper was rated at 90 gph and
Hagen tech told me that when I run the AC150 in max reduction it can
drop to half its rated output.

Will this excess current stress out the Neons or cause any other
problems?

Computer Prog wrote:

I just replaced my old Whisper Jr filter with an AC 150. The tank is
10 gallons. The Whisper shot its output stream across the top of the
tank and the current broke against the front glass. It looked like I
got a good amount of filter output from the Whisper when the media was
clean but I did not have excessive current flying around in the tank.

snip

Will this excess current stress out the Neons or cause any other
problems?

I have an AC 150 on my 10 gal tank, two years, no problems. At one
time or another I've had 6 neons, 6 danios, platies, always a betta,
and right now 2 SAE's and a betta. I have the filter set all the way
to the left end of the tank, with plastic plants about the tank. Some
of the fish love to play in the flow from the filter, but it is
important to make sure there is a relatively calm area for the fish to
rest and sleep. The plant cover of the, calmer, right side of the
tank, has always seemed to be suitable to the fish for that purpose.
I like the AC filters. After buying a few other brands (I have
running on various tanks), I bought one AC, now I own 3. They are
spartan, unpretentious and inexpensive. By putting 2 sponges in the
basket, I think there is more bio media working than with other HOT
filters of its size.
Good luck with your setup.

Paul