Skip to product information
1 of 3

Seachem Tidal Aquarium Filter, 35 gal. (135 L), 2P

Seachem Tidal Aquarium Filter, 35 gal. (135 L), 2P

Regular price $70.25 USD
Sale price $70.25 USD Regular price
Sold out

Save when you buy more than one

Seachem Tidal Aquarium Filter, 35 gal. (135 L), 2P

Regular price $70.25
Sale price $70.25 Regular price
Sold out
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
View full details

Where Seachem Tidal Aquarium Filter, 35 gal.... fits in your dog's day

Three short notes on who this product suits, how owners use it and what they keep an eye on, with your vet as the person to ask about health questions.

  1. An older couple on a park bench with their golden dog resting at their feet

    1Who it's for

    Owners who want everyday gear that fits their dog's size and makes walks, meals and rest at home simpler to manage.

  2. An owner offering a daily chew to a senior dog in the kitchen

    2How to use it

    Compare the size or capacity details with your dog's measurements.

  3. A woman walking her dog along a suburban sidewalk at dusk

    3What owners notice

    Owners look at how the item fits into the daily routine and how well it holds up after several weeks of regular use on walks, at meals and at home.

About this product

This hang-on aquarium filter is rated for tanks of 35 gal. (135 L) or smaller, and its pump primes itself, so the filter basket does not need filling with water or starting with a siphon. The unit measures 15.9 x 13 x 20.3 cm (6.3 x 5.1 x 8 in) and ships with Seachem's Matrix bio-media. Water travels from the bottom of the basket to the top rather than the other way round.

What the filter does in a running tank

The self-cleaning impeller is corrosion-resistant, and the brand lists it for both saltwater and freshwater use. Ventilation slots in the lid and aeration grooves in the outflow are built into the housing, and a dial on the front adjusts the flow rate.

  • Water is pushed upward through the filter basket, so the flow runs from the bottom of the media to the top.
  • The surface skimmer draws water from just below the surface as well as from deeper in the tank.
  • When the filter needs attention, water is redirected around the basket and out the side, and a blue alert rises on top.
  • The basket snaps into the lid and lifts out for carrying without drips.
  • An adjustable leveling device is fitted to the unit.
Model 6581
Colour black
Style Aquarium Filter
Size 35 gallons
Material Matrix™ bio-media
Item dimensions (L x W x H) 15.9 x 13 x 20.3 cm (6.3 x 5.1 x 8 in)
Included components Filter media

Checks before you buy

The rating covers aquariums up to 35 gal. (135 L); a larger tank falls outside it. Measure the space behind or beside the tank, since the filter body is 15.9 cm long, 13 cm wide and 20.3 cm high (6.3 x 5.1 x 8 in).

The basket takes loose filtration media of your choice and uses no filter cartridges, so you pick and arrange the media yourself. The impeller is listed for saltwater as well as freshwater setups.

What comes in the box

  • One Seachem Tidal aquarium filter, model 6581, in black
  • Seachem Matrix bio-media for the filter basket

Questions buyers ask about this filter

How large a tank can this filter run?

It suits aquariums of 35 gal. (135 L) or smaller. Anything larger is outside the stated rating.

Does the filter basket take cartridges?

No, the basket holds loose filtration media of your choice, and Seachem's Matrix bio-media is included.

What are the outside dimensions of the unit?

The filter measures 15.9 x 13 x 20.3 cm, which is 6.3 x 5.1 x 8 in.

Can the basket be carried without dripping?

Yes, the removable basket snaps into the lid, so it can be carried without drips.

Product details

BrandSeachem
Product typeAquarium Filter
DepartmentSeachem Canada
Sold byDogJointly, operated by YALEO LLC
DeliveryFree standard US delivery, usually 7 to 14 business days after 1 to 3 days to prepare
Returns30 days on unopened items in their original packaging, with damaged or wrong items covered at our cost
Delivery and tracking

Standard delivery is free to every US address, we prepare orders in 1 to 3 business days, delivery usually takes 7 to 14 business days, and the tracking link arrives by email when the parcel ships.

Returns and refunds

You can return unopened items in their original packaging within 30 days of delivery. Damaged, faulty or wrong items are replaced or refunded at our cost, so please read the refund policy and contact us before you send anything back.

How Subscribe and Save works

Choose the subscription option above the cart button to receive this product on a regular schedule at the lower subscription price. You can skip a delivery, change the schedule or cancel from your account or by writing to support@dogjointly.com.

Multi-buy savings

Pick 2, 3 or 4 units in the quantity cards to save 10, 15 or 25 percent on the item price. The saving is shown in the cart before checkout, so you can compare the total with a single unit.

Labels, ingredients and your vet

Ingredient lists and serving tables can change between batches, so the label on the pack you receive is the reference to follow. Please ask your vet before starting a supplement, especially for a senior dog or a dog on medication.

Questions about this product

Is Seachem Tidal Aquarium Filter, 35 gal. (135 L), 2P available in the United States?

Yes, it is in stock at DogJointly and ships free to US addresses, usually within 7 to 14 business days after 1 to 3 days to prepare.

How should I compare Seachem Tidal Aquarium Filter, 35 gal.... with similar products?

Compare the brand, format, serving table and pack size in the details above with similar items in Seachem Canada, and check the choice with your vet.

Where can I find delivery and returns information?

Delivery and returns are summarised on this page and set out in full in the shipping and refund policies linked in the footer of every page.

☆☆☆☆☆

Guides and order help

Reading that helps you compare products, plus the pages that answer delivery and return questions.