Equipment
Penn-Plax Cascade 300 Bio-Sponge Replacement.
Replacement bio-sponges for the Penn-Plax Cascade 300 internal filter — available in single and 2-sponge packs so you can rinse one while the other stays colonized.
$3.99In stock
In-store purchase only. There is no online checkout on this site. Pick this up at our Erie store, or call us to arrange shipping.
- Brand
- Penn-Plax
- Condition
- new
- Fulfillment
- Local pickup — Erie, PA
Pick this up at the shop, or ask us to ship it. Shipping cost depends on the item, so call (814) 456-9445 and we'll quote it — payment is taken upfront before the order goes out.
What it's for
Underlined topics open the guide that explains how they work.
- replacing worn filter media in Cascade 300Chemical filtrationMedia that grabs dissolved things a strainer can't catch, like odors and tint.In How to build an easy freshwater sump — no drilling, no cut glass
- maintaining biological filtration coloniesBiological filtrationThe bacteria that turn fish waste into something harmless. The real filter.In How to build an easy freshwater sump — no drilling, no cut glass
- cycling sponges to preserve beneficial bacteriaBiological filtrationThe bacteria that turn fish waste into something harmless. The real filter.In How to build an easy freshwater sump — no drilling, no cut glass
- internal filter maintenanceCleaning & water changesWater changes, siphoning and glass cleaning. This is how waste actually leaves a tank.In How to Do an Aquarium Water Change (and How Often)
Visit the store
660 East 14th Street,
Erie, PA.
Mon–Fri 12–6 · Sat 11–4 · Sun closed. Call ahead on livestock — what's on the floor rotates.