Water Pump Question



I'm currently looking for a water pump for my 10 gallon. I tried a Koralia nano (yes, based soley on the fact the word nano is in the title), and that proved entirely too strong. The only two I can find with under 100 gph capabilities is the ViaAqua 180 which puts out 80 gph, and the Hydor Pico Evolution Mini Pump 200 which puts out 70 gph. Anyone out there have experience with either of these, and are these in more of an acceptable range, GPH wise? Thanks for any help.


Lifetime Charter Member
Lifetime Member
Jun 21, 2009
Surprise, AZ

You might try Harbor Freight or some such around Thanksgiving they had some really cheap small submersible pumps.

A while back, Fluval was dumping their old line of submersible filters and I found the pump in them ideal for five and ten gallon tanks and for pulling a little extra current flow into densely planted areas. Perhaps even, look on Craig’s list or something, getting into the time of year when parents figure out their six-year old, snot machine is not going to take care of the fish.:)



Lifetime Charter Member
Lifetime Member
Jan 15, 2009
I think one of my replies got nuked but....

You can probably stuff something into the koralia to reduce the flow, or wrap something around it or just aim it into some plants if you like to reduce the flow.

Another possible option is if you can find some of the pet water fountains. They often have a pretty low power pump in them to circulate the water. You might also try a small HOB filter and use it without media or submersible unit and use just the pump from that. You might be able to find any of these as a "broken" unit for cheap. Just some possible ideas to consider.

Typically I think too many people baby their fish with low flow, but it's often hard to get good flow in the 10 gallons or less without turning it into a jacuzzi. I've run high flow in a 10 gallon before but I used a reverse flow UGF to do it. Probably not something you're going to want to try.

Last edited by a moderator:

Tom Barr

Staff member
Jan 23, 2005
I use a Rio 90/50 etc, and then a Hagen filter HOB.
You can mod the impeller to run mist/needle wheel, that will reduce flow.

Tom Barr