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Results 1 to 10 of 11
  1. Default Canister filter concerns

    0 Not allowed!
    Hey all,

    So we have the chance to switch our 3 big tanks over to canister filters. We currently have HOBs. My biggest concern with the canisters is with them leaking, and consequently flooding the floor and/or draining the tanks. Am I being paranoid? Is there some sort of anti-siphon system we should have in place? Although my understanding is that most of the canisters work on a siphon to get the water to the filter, so not sure how practical that is. We are getting Rena/Filstar XP filters.



  2. #2


    0 Not allowed!
    I think you may be worrying a little too much.

    I have been using canister filters for years without any major problems. If you stick with a good quality brand name and maintain it properly, you should have years of worry free use. Good choice on the Rena XP filters. I really like mine.

    When/if canister filters leak, it will usally be caused by seal failing and it would not be a fast enough leak to drain your tank without you first noticing a little water on the floor. I have my XP filter sitting in a rubber maid tote in my stand, just in case it does leak the water is contained.
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL=""]

  3. #3


    0 Not allowed!
    Agree with Cliff.
    I`ve used canister filter`s sence 1996 and never had a bad leak.
    Just a small one after years of use, the rings do need to be replaced.
    Am running a Eheim 2224 thats 8 soon 9 years old, still not leaking.
    But I have just odered new part`s and ring`s. Going to replace every ring soon, need it or not. ( pease of mind )
    Love my Eheim`s best buy for money imo.
    I`ve also had afew of the Fluval`s and there a good canister filter.
    Not tryed the Rena, but just wantèd to say it`s safe to use canister filter`s.
    Last edited by Katt; 01-21-2013 at 11:33 AM.

  4. #4


    0 Not allowed!
    There is no more reason to think a canister will leak than a HOTB will leak. In fact, I had a leak on a HOTB.

  5. Default

    0 Not allowed!
    Thanks so much for the reassurance everyone. I figured I was being a bit paranoid; good to hear my fears of flooding are unwarranted! :)

    I had the thought of putting the canister in something to contain any leaks, sounds like its not a bad idea.

    Thanks again! Looking forward to our new filters!


  6. #6

    Join Date
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    0 Not allowed!
    What size of tanks are you wanting canisters on? Also what exact models you looking at?
    My therapist says I need a bigger tank . . . . .

  7. #7


    0 Not allowed!
    "We are getting Rena/Filstar XP filters." Tank sizes not mentioned.

  8. Default

    0 Not allowed!
    I've also had several canisters and never any problems with leaking, knock on wood.

  9. Default

    0 Not allowed!
    Getting the xp3(L) for the 55, and xp2(M) for the 20 and the 45. 55 and 20 are planted, 45 is not.

  10. #10


    0 Not allowed!
    I have had xp1, xp2 and xp3 rena filters... only had one leak and it was my fault. I was changing up some things and I removed the gasket and re-installed it. When I put the lid back on it pinched the gasket and started a slow drip of water. Once I realized I fixed the pinch and it was fine.

    These work so great I bought one for my grandma! She loves and it no problems.
    300g + 240g in wall build! - Follow Here
    120g SW Reef, LED lights, cool fish and corals!

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