hm.. HOB filter current issue - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 7 Old 01-09-2011, 06:56 PM Thread Starter
hm.. HOB filter current issue

Hi all

I have an Aqueon 55 hob filter in my new 55 gallon tank. It does not have any sort of adjustment for the output flow and the current it is producing seems to be too strong. Anyone have any ideas of what I could try to lessen it?


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Last edited by ginagv; 01-09-2011 at 06:57 PM. Reason: spelling
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post #2 of 7 Old 01-09-2011, 07:18 PM
jaysee's Avatar
What makes you think the current is too strong?

Were it my tank, I would have a second filter.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #3 of 7 Old 01-09-2011, 07:52 PM
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I had the same problem with my HOB is an aquaclear 110. I took a ziploc bag and put one end under the filter (in other words, folded over the edge of the glass, and then i hung the filter on that spot to hold the one edge in place). I attached the other end of the bag to my aquarium lid, so now when the water flows out of the filter, it falls onto the canopy formed by the bag, and then splls straight down off either side of the bag in two vertical streams instead of being forced down across the surface. It has slowed the current down in my tank considerably. Probably if i put some holes in the bag it would make even less of a curent as the water would be dispersed even further.
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ginagv (01-10-2011)
post #4 of 7 Old 01-09-2011, 10:25 PM Thread Starter
well.. to answer the first question, my barbs are struggling to swim over to that side of the tank sometimes... there is one area on that side that is calmer..

and its not the only filter in the tank... its just the one with the strong current..

The thing that concerns me more is this... I have not yet bought my "centerpiece" fish.. finances... etc.. so the residents of the 20 gallon I had previously are in the 55. and all of them are having a wonderful time!

For those centerpiece fish Im considering either a mated pair of angels... or 1 solitary gourami... I don't think (and correct me please if I'm wrong) either of them like a strong current..

otherwise I'm not sure what bigger fish to put in, that is fairly peaceful...

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post #5 of 7 Old 01-10-2011, 06:49 AM
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Is true that some fishes don't appreciate strong current but barbs could care less. I kept a group of 9 Angelfish in 75 gallon from the time they were nickle sized to nearly five inches from nose to tail. Tank was filtered with two Emperor 400's by Marineland Approx 600 gph ,Also had a old Aquaclear 804 powerhead for benefit of loaches that also resided in the tank. Fishes grew strong and healthy and tank water remained crystal clear between weekly water changes.
Reducing the flow of filters also reduces their performance (ie) their ability to keep particulate matter suspended so that the filter material can trap the unwanted particulates ,debri,etc.
So long as fishes are not being knocked around the tank, I would not stress over flow from filter. Reducing the flow will have more of a negatvie effect with regards to water quality than any problems fish may have with flow,, with few exceptions.

The most important medication in your fish medicine cabinet is.. Clean water.
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post #6 of 7 Old 01-10-2011, 07:08 AM Thread Starter
ok.. I'll stop worrying then..

The water in the tank is excellent.. very clear.. the tests are very good.. all the fish look happy.. active.. vibrant...

I really couldn't be happier with the whole thing.

thank you all for your help..

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post #7 of 7 Old 01-10-2011, 07:16 PM
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I had the same issue with my HOB's, same brand too, I wrote a DIY if you want to follow my method. It seemed to work pretty well while I had them going(I moved to sponge filters for my plants), but I would replace the filter material you use every 2 months or so.

Reducing/dissipating HOB filter flow
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