Prefilter for canisters

Sumpin'fishy

Humble Disciple of Jesus Christ
Oct 16, 2002
673
0
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Savannah, GA
What does everyone use for prefiltering the intake tubes to their canisters?
 
You can check out the Max III prefilter at www.thatfishplace.com. I use a round pond filter pad with a hole in the center slipped over the intake of my Eheims. It works well to keep out the big stuff. The foam is about 2 inches in diameter and fits tightly over the end of the intake. I find that my Pl*co likes to clean them for me.
 
i use the sponges from powerhead intakes to cover filter intakes works well, as it should
 
I cut a hole in the middle of a large sponge before and stuck that on the intake of my Magnum HOT. After about a week, I noticed about a quarter of the HOT canister was filled with air. It was clogging up the filter enough to stop the full water flow from working. It drastically increased my current and quickly filled back up with water when I would remove the prefilter and clean it. Same problem again the next week, etc. I decided that since my fish are too large to get sucked in, I would just leave it off altogether. I just don't wanna have to clean my mechanical filter sleeve as often as I have to now. Why did my prefilter sponge get clogged so quickly, and does any of yours do the same? I really would rather not slow down the current and water turn-over rate.
 
My dad bought me a pack of Eheim's prefilter sponges... basically a cylinder shaped sponge with a hole in the middle. Works great for me.. I never had problems with air building up in any of my canisters (a fluval 404 and an eheim 2026). I just blast the thing with tap water once a week to keep it clean.

HTH
-Richer
 
The Filter Max III is pretty good. It has a variety of attachment devices to fit just about any size input tube, and it can be oriented horizontally or vertically. The sponge material itself is a bit coarser than I like, but otherwise they work fine.

Most of my prefilters are Tetra PHAS sponges. They are basically just a sponge cylinder with a hole drilled the length of the sponge. I then drill holes in the last 3" or so of the intake tube, so that water will be drawn in the length of the sponge, not just at the bottom. Works great!

Jim
 
That's a good idea, Jim, I think I'll try drilling additional holes in the intake and adding the sponge again, thanks guys!
 
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