Gross Canister Filter lines - The Planted Tank Forum
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post #1 of 7 (permalink) Old 04-27-2020, 11:40 AM Thread Starter
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Gross Canister Filter lines

I started an excel regiment about two weeks ago. I have a tendency to turn off the canister filter while I feed live brine shrimp.

Lately every time I turn it back on there is a disgusting blast of brown algae from inside the feed tubing. I'm assuming the excel has the algae ,that has accumulated in the tubes, dying and breaking free. I don't plan on dosing much longer.

Would covering the clear tubes in fabric or the like keep them from growing all that brown algae inside? Any other solutions that have worked for the group?

I am an equipment and tool junkie. I try to keep it simple but.........
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post #2 of 7 (permalink) Old 04-27-2020, 01:10 PM
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All filters should have an intake pre filter on them. Any food that gets stuck the fish will have fun picking it off and eating it. Leave the filter on.
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post #3 of 7 (permalink) Old 04-27-2020, 03:42 PM
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Originally Posted by PlantStudent View Post
I started an excel regiment about two weeks ago. I have a tendency to turn off the canister filter while I feed live brine shrimp.

Lately every time I turn it back on there is a disgusting blast of brown algae from inside the feed tubing. I'm assuming the excel has the algae ,that has accumulated in the tubes, dying and breaking free. I don't plan on dosing much longer.

Would covering the clear tubes in fabric or the like keep them from growing all that brown algae inside? Any other solutions that have worked for the group?

It seems the less light the tubes receive the slower the growth but I have found even in total darkness this algae still will coat the tubes. The only solution I have found is to break down and clean everything. They sell long tube brushes used for cleaning beer making equipment that work far better than anything sold for aquariums.
Pre-Fiters on the intake inside the aquarium are another option. Like previously stated it would prevent the food from being sucked all the way in and should let fish pick at it. I have used them in all my tanks until recently. The negatives of pre-filters are they look bad, when it comes to cleaning the second you turn the filter off half the crap that is on the pre-filter falls off - you can try to wrap a small bag around the pre-filter before turning the filter off but this is a true pain with limited success, they can plug frequently depending on the foam pore size and flow rate.
The sentence in red was my reason for removing them.
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post #4 of 7 (permalink) Old 04-27-2020, 06:50 PM
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If one is alert and the grunge coming out really bothers enough, an alternate is available but does take some labor.
When restarting after banging the tubes around, one way to collect the grunge is to fit a siphon tube near or over the end of the filter tube and let it siphon the grunge as you turn the filter back on to run. Of course this means you then need to add some water back or use a recirculating siphon. I normally have enough plants and clutter, so that the stuff just gets hidden with the rest that collects.
I know of no way to fully keep it from growing but have grown used to giving myself a pass on small points like this.
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post #5 of 7 (permalink) Old 04-27-2020, 06:58 PM
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what is your maintenance schedule on your filter?
how often are the tubes cleaned?

I don't think it has anything to do with the excel but more to do with just keeping the tubes clean.
if they're clear and they see light then they're going to grow more stuff inside but this is just regular bacteria that are beneficial in the cycling of the tank.
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post #6 of 7 (permalink) Old 04-28-2020, 10:20 AM Thread Starter
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I actually have a prefilter on my canister. The gunk that comes out of the feed line is for sure algae from in the tube. It only started to happen when I began an excel regiment. Oddly enough my prefilter doesn't bother me. I fact it is pretty well hidden as I chose a black backround and the prefilter is black. I then planted a water wisteria in front of it. The shrimp hang out on there often and I've never had anything drop off of it once the filter is turned off.

The possibility is there of course that it is just a coincidence. That is started because the algae became so thick in the tubing that the blast of water when the filter is turned on it dislodges the thicker areas.

I clean my canister every 5 or six weeks. The tubes have always been brown and sort of gross looking, but I never even considered going through the effort to clean them out. Seems like a total PITA.

Do those of you with black tubing for your canisters have the same type of issue?

Perhaps I am overthinking this as the fish actually seem to eat some of the algae that comes out. Perhaps the shrimp and snails will clean up the rest...

I am an equipment and tool junkie. I try to keep it simple but.........
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post #7 of 7 (permalink) Old 04-28-2020, 10:53 AM
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Happens on fluval tubes too. Which are black, so covering them will help little
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