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Results 1 to 6 of 6
  1. #1

    Default What is the best way to clean a canister?

    0 Not allowed!
    This weekend I cleaned my canister for the 2nd time. While it was a little over due, I don't remember it being this difficult the first time I did it. All I did was wipe off a little gunk from the UV light that sits in the filter and changed one of the foam pads in a basket. But the water inside the filter was disgusting. Lots of debris and such. I had the filter unplugged of course when I was doing this, but when I turned the filter back on and I primed it a little. Tons of this gunk came shooting out of the out take spray bar and back into my tank. Was this bad? Is it harmful to the fish? The tank is clear now. Anyway, what should I have done differently?

    55g- blood parrots, SAE, bristlenose plecos

  2. #2


    0 Not allowed!
    It always happens when I clean my filters and so far it hasn't harmed my sish
    juwel rio 180
    , 6 odessa barbs, 9 neon tetra, 3 keyhole cichlids, apistogramma cacatuoides, countless shrimp, apple snails
    10G (dozens of) blue pearl shrimp
    70L with jewel cichlid female
    7G tank 12 CRS (more like 60 at this stage)

    Thirty-five is when you finally get your head together ,and your body starts falling apart.

  3. #3


    0 Not allowed!
    You and I both need a canister hose brush. They cost next to nothing but I've never gotten one either. I hate that stuff flying out after you've just cleaned your tank up nice.

  4. #4


    0 Not allowed!
    Mine has done that the few times I've cleaned my canisters. I always clean the canisters and let them run half an hour before doing a water change, that way you can suck up most of the gunk when the water change is done

    29 gallon-planted community

    20 long frag tank
    75 gal-planted goldfish

    75 gallon mixed reef with 20 gallon sump

  5. #5


    0 Not allowed!
    yea, I suppose cleaning the canister first is the best option. I have a pipe cleaner thing that I 'll try on the hoses next time. Thanks guys.
    55g- blood parrots, SAE, bristlenose plecos

  6. #6


    0 Not allowed!
    Hose cleaners are good to have, I would clean them out every other time. I usually do maintenance on my canisters once every other month (alternating between the two I have).

    I will usually dump the dirty water and refill the canister with clean tank water (I clean it while doing a water change; before the water change). This gets rid of the debris buildup. I also replace the fine filter floss and rinse debris from the more coarse foams. I try to avoid contact with any bio media that is in the cansiter when I can.

    Remember, any rinsing should be done with TANK WATER ONLY. But I feel dumping the gunky water/debris is usally a good idea. And in the end it will improve the water flow from your filter.
    "My call sign is digital3... But you can call me Joda!"
    Click Here to visit my Blog
    Click Here to see my Pics S.S.A.A.C. & S.R.S.

    55 gal. planted (Co2 Pressurized) - 1 Featherfin Syno, 2 Bolivian Rams, 2 SAEs, 3 Congo Tetras, 4 Long Fin Rosy Barbs, 6 Sunset Platys, 2 Lyre Tailed Swordtails, 3 Peppered Corys, 2 YoYo Loaches
    3 gal. planted nano (no Co2) - 1 spotted puffer, 3 Neon Tetras

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