Water return nozzle.. Flow clogged?

ChuckNasty

New member
Hello, ladies and gents!

So I'll attach a picture, but basically my water return that sends the water back to my display tank from the back compartment after it has been sent through the skimmer is on the fritz. It used to have much more pressure and a strong flow, but as of late, it has been reduced to a very pitiful flow.

Maybe it has become clogged, I did lose a fish recently and found no trace of it anywhere, maybe it got stuck in there? Regardless of how it has become clogged, I have pretty much no idea how I would go about cleaning it... It was hard enough to get that set up with OUT water let alone with all my marine critters and 24 gallons of water!

Any help would be huge, as this return hose is what I use for my surface agitation, and oxygenation!

Thanks! Chuck
 

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The tank is only about 7 months old, is that normal? Also how do I clean something like that when there is water in the tank?
 
x2. Small snails and cheato moss have ways of getting into the impeller chamber and reducing flow. All you have to take apart is the impeller chamber, which is usually a matter of 4 screws on the front (discharge end) of the pump---disconnect the pump from the hose first. if you are not at all handy, do this on a day when you can take it to your lfs for help---but it's simple. Check the impeller to be sure that's ok, that it hasn't broken a flange or eaten a snail or wad of moss. Reassemble.

If you see white gunk deposit that's hard, running the pump in a bowl with a pure vinegar bath will clear it out considerable in 12 hours, and most tanks can go pumpless that long.
 
I run my pumps and powerheads in vinegar for an hour every 3-4 months. After that softens everything up I take them apart and use a kids toothbrush and some q-tips to clear the remains. I like it, its gratifying, and I think machines work better if you keep them in good order instead of letting them get bad. Like how you change the oil in your car.

what pump are you using?
 
Honestly guys, the tank I am using right now, does not have a sump or a pump which you guys are talking about. This tank has a rear chamber, that does everything a sump does. Everything Im using right now, came with the tank in a "kit" so I just kind of had to assemble it. Literally, the "pump" is just a hard plastic hose (see picture) that i put together and plugged in. I have no idea how I would go about disassembling that with water currently in the tank.
 
There must be a pump somewhere to push the water back to the display. The loc line in the picture, what does it attach to?

If you were closer I would come give you a hand.
 
Just did a quick read on it. You have a circulating pump in that compartment somewhere. I would guess that needs to be cleaned. I have not seen that particular setup but it must be able to be removed somehow. pumps need cleaned and replaced. Good luck
 
That makes no sense though. You say it doesn't have a pump, and that the skimmer is unrelated. There's nothing left to push water into the return nozzle...
 
On the user manual for that tank it shows a 'filter pump' which essentially is a return pump. This is most likely where the issue lies, or some of the pipes running from this to the loc-line assembly.

Fluval Manual
 
By the looks of the diagrams the pump is in a weir overflow section so all you need to do is turn the pump off and remove it. There shouldn't be any need to drain the tank.
 
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