Walmart Poly fil

riche · Jan 26, 2025

Anyone have a list of who 3-d prints the 4” filter cups?

tbrown · Jan 26, 2025

riche said:
Anyone have a list of who 3-d prints the 4” filter cups?

@Projects with Sam does but I think he's offline currently if he doesn't have any stock.

Printed Reef has some I believe as well.

tsharpe291 · Jan 26, 2025

tbrown said:
@Projects with Sam does but I think he's offline currently if he doesn't have any stock.

Printed Reef has some I believe as well.

yes I tried him but no luck, I had to order some from saltwater aquarium but they are to loose in my sump, didn't think about printed reef. I ended up using rings I cut from 2 filter socks to make the cups fit better. loving the poly fill, no more sock washing.

Dom_P · Mar 23, 2025

Hi. Dumb question for those of you using poly fil in a cup. Do you have any concerns about any small fibers escaping from the holes in the cup? I was thinking about using a mesh bag to put the poly fil in. But maybe I’m over thinking it

backbayreef · Mar 23, 2025

Dom_P said:
Hi. Dumb question for those of you using poly fil in a cup. Do you have any concerns about any small fibers escaping from the holes in the cup? I was thinking about using a mesh bag to put the poly fil in. But maybe I’m over thinking it

I put them in a double mesh and then put inside the socks. The socks are also wrapped in bubble wraps, just in case.

j/k man — you’re overthinking this…

Dom_P · Mar 23, 2025

bakbay said:
I put them in a double mesh and then put inside the socks. The socks are also wrapped in bubble wraps, just in case.

j/k man — you’re overthinking this…

LOL. Thanks.

Red_Beard · Mar 23, 2025

I have done the same with polyfil in a cup where the socks go. It does work well, but i did end up seeng a few fibers in my return pump when i took it apart for cleaning and have since nixed it. I think some of the other brands can also utilize chemical mold/mildew inhibitors, but OG polyfill is clean/ safe to use. Most of the time i go without mechanical filtration, its just coral snacks anyways :) But, i will chuck in some reef diapers(they are legit, if you havent seen them yet) before maintenance to catch anything extra i stir up and hit the tank with diy snow(calcium carbonate). They stay in for 2-3 ish days then back to normal.