Question 1

Currently have a 10gallon but will upgrade shortly to a 30ish for a yellow eared turtle.  Does this sit on the bottom where it could suck in the food and waste that collects on the bottom where my river rocks are?  It has proven hard to get that out and the pleccu is not cleaning it up as of now.

Accepted Answer

Mine is laying on the bottom of my tank and i have never had it sitting upright. I can tell you it does pretty well sucking everything up. However, i usually have one spot in the tank, right underneath the filter where debris sits. When I need to water change I just make sure I get the debris out with a fish net. That seems to work pretty well. It is the best filter I have had so far (with a turtle that has killed 4 filters), just make sure to clean the motor fan with every water change or filter media change.

Question 2

Does the U4 filter have space to add activated carbon pellets?

Accepted Answer

Yes it can, in the center of the filter there a removeable plastic cage. I put a small Chemi Pure bag in it. But I didn't care for this filter and not cause it didn't work. But I was wanting something more as a skimmer type filter and I wasn't getting enough flow out this filter unit. But it did work, if your running this on a smaller tank say no 30 gal freshwater ok. I was running it on a 29 gal reef tank with lots of live rock and it couldn't push enough water around it. But it did filter the water good.

Question 3

Do all 3 outputs work at the same time?

Accepted Answer

No, you have to pick a setting. I use mine for moving water in the bottom of my tank. It also seems to be he strongest setting out of the 3 choices

Question 4

Can I change the direction of the water coming out of the nozzles? For example directing it upwards instead of horizontal.

Accepted Answer

There's a small directional piece on the end of each nozzle you can turn to minimally direct the flow - but not nearly that much.

ASIN	B001Q1HPGE
Best Sellers Rank	#16,572 in Pet Supplies ( See Top 100 in Pet Supplies ) #126 in Aquarium Filter Accessories
Brand Name	Fluval
Capacity	110 liters
Customer Reviews	3.9 3.9 out of 5 stars (4,770)
Global Trade Identification Number	00015561104708
Included Components	Filter
Installation Type	Freestanding
Item Dimensions L x W x H	10"L x 4"W x 5"H
Item Type Name	HAGEN FLUVAL U2 UNDERWATER FILTER
Item Weight	0.64 kg
Manufacturer	Rolf C. Hagen (USA) Corp.
Material Type	Plastic
Model Name	HAGEN FLUVAL U2 UNDERWATER FILTER
Model Number	A470
Number of Items	1
Part Number	HGA470
Power Source	Manual Operation
Purification Method	Reverse Osmosis
Supported Water TDS Level Maximum (PPM)	1000
UPC	015561104708
Unit Count	1 Count
Warranty Description	3 years; Fluval U Series Power Filters are guaranteed against defects in material or workmanship under normal aquarium usage and service for 3 years. We offer a 3 year guarantee on all nonreplaceable parts which means that the filter will be repaired or replaced at the manufacturer's discretion, free of charge, when the complete pump is returned with proof of purchase and postage paid. This warran…

Hagen Fluval U2 Underwater Filter

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