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	B001TKZ51E
Additional Features	Einfach anwendbar, Innengerät, Langlebig
Best Sellers Rank	#5,375 in Pet Supplies ( See Top 100 in Pet Supplies ) #202 in Aquarium Accessories
Brand Name	Fluval
Color	Black
Customer Reviews	4.1 4.1 out of 5 stars (2,106)
Global Trade Identification Number	00015561104753
Included Components	Internal filter
Item Dimensions L x W x H	30.5L x 15.2W x 12.7H centimeters
Item Weight	1 Pounds
Manufacturer	Fluval
Manufacturer Part Number	A475A1
Material Type	Plastic
Model Number	A475A1
Number of Items	1
Number of Packs	1
Pet Type	Fish, Reptile
Product Style	Top
Specific Uses For Product	Indoor
Tank Volume	150 Liters
UPC	015561104753
Unit Count	1 Count
Vivarium Type	Aquarium

Fluval U3 Underwater Aquarium Filter 150L (40 US Gal)

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