Blackworms, Freeze Dried Premium California Blackworm Cubes: 6 Month Subscription, Free Shipping Included

Blackworms, Freeze Dried Premium California Blackworm Cubes: 6 Month Subscription, Free Shipping Included

From: $11.21 / month for 6 months

In stock

From: $11.21 / month for 6 months

You are purchasing a 6 month subscription of this desirable discus food. We will ship your requested portion to your home for 6 months at a 15% discount from our regular-priced product. No obligations. You may cancel at any time.

Double the growing speed of your discus!

Our Small Cubes of Freeze Dried California Blackworms are a mixture of Small and Medium Cubes. There are approx. 175 to 200 Cubes per 100 grams. Their Sizes are approx. 3/8″ x 3/8″ x 3/8″ To 1/2″ x 1/2″ x 1/2″.

Ingredients: 100% pure freeze dried blackworms

My fish won’t feed from the top, how do I get them to eat the freeze dried worms?

With the cubes, press one against the inside of the tank half way down. It should stick against the side and the fish will then show more interest in it. Once your fish get used to freeze dried worms, they usually will take them from the surface.

Should I reconstitute freeze dried worms before feeding them to my fish?

No, just put the worms straight into the water and let your fish feast on them.

Will the worms swell up in the stomach of fish?

No, they will take water back in but will not increase in size.

Are your worms disease free?

There are very few if any diseases that are transmitted from water to fish and the area that we live and grow worms in is away from farming and industrial areas. The water that the worms are grown in, up to a short time ago, came from the same water supply that we got our drinking water from.

Is the protein content the same for live worms and freeze dried worms?

Yes, the only difference between the two is the water content of the live worms.

What is the most popular quantity size?

The 25g portion is the most economical and popular size we sell.


SKU: blackworms-freeze-dried-california-blackworms-cubes-6-mo Categories: , ,

1 review for Blackworms, Freeze Dried Premium California Blackworm Cubes: 6 Month Subscription, Free Shipping Included

    Blackworms, Freeze Dried Premium California Blackworm Cubes: 6 Month Subscription, Free Shipping Included photo review
    Barbara L., Barrington, NH (Verified Customer) August 7, 2023
    December 2, 2023
    Hi Michael, so nice to hear from you!  I’ve attached a couple pix of my discus, and wish I could get more!  I will certainly buy from you when the tim...More
    Hi Michael, so nice to hear from you!  I’ve attached a couple pix of my discus, and wish I could get more!  I will certainly buy from you when the time is right, but between having to cut back a couple years ago due to a severe drought (I have well water) that forced me to sell some of my fish, and more recent health issues, I can’t indulge in my hobby as I’d like too.  It’s awfully tempting when I see the quality and selection of discus you have, though!


    The first pix is the day I introduced the young Santarems to my 75g tank.  They were bred by Tom Muller (CoralBandit) of African Chiclid fame.  I belonged to a small group of discus lovers on an online forum, who welcomed me into their ‘club’ when I first got into discus.  We had all bought some 2.5” - 3.0” babies at about the same time, so it turned into whose were growing fastest, and did anyone get a breeding pair.  Of course Tom (the ‘fish whisperer’) won!  Amazingly he had two pair off and successfully raise a good sized batch of babies before the pair was a year old!  The second pix is of my two Turks (who were 6” & 8” respectively) that I ended up selling when my well almost dried up.


    All My Best,


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Every fish we sell bears our gold seal that represents the promise to our customers. When you make a purchase with us, you are entrusting our team with shipping you a collector grade specimen of unparalleled quality, beauty, size, and heft based on our judgement accrued over 25 years of experience. We guarantee the fish you receive will match the exact fish represented in our product photos. We are the gold standard of discus. Note: our discus are always measured from tip of nose to end of tail.


Category Rating
Care Level: Moderate, see our Learning Center for comprehensive care.
Temperament: Peaceful
Color Form: Huge variety available
Lifespan: 15-25 Years
Adult Size: 8-12 inches
Diet: Omnivorous
Family: Cichlidae
Minimum Tank Size: 50 gallons
Tank Set-Up: Bare-bottom, or Intermediate
Compatibility: Often compatible

Natural Habitat for Discus

Discus are found in floodplain lakes and flooded forests of the lowland Amazon River basin and some of its tributaries, including the Rio Negro.  These areas experience extreme changes in water level due to seasonal flooding.  Discus tend to congregate near fallen trees, known as “galhadas”, along the shore.  They prefer quiet water, and are rarely found in areas where there is strong current or wave action.

Discus Water Requirements

Discus prefer warm, soft, acidic water.  pH should be between 6.0 and 7.0, with hardness between 1° and 4° dKH (18 to 70 ppm).  Temperature should be kept between 82° and 89° F. Water conditions for both wild and hybrid discus are the same. While captive bred discus can be kept in dechlorinated tap water  reverse osmosis or deionized water supplemented will ensure the the best conditions. Discus require pristine water quality, and depending on the filtration system being used, a weekly or bi-weekly water change of 10% to 25% is highly recommended. Don’t forget to treat tap water with conditioner before refilling your aquarium!  

Housing Requirements for Discus

Discus grow to be quite large, and full sized discus will require an aquarium of 50 gallons or larger when they reach adult size.  Tall aquariums are best, to accommodate their body shape.  Current should be gentle, and décor if used at all should include large broadleaf plants and driftwood that is arranged vertically to simulate downed branches and trees.  A few floating plants can also be added to provide shaded areas and cover. Substrate should be fine to medium grade and smooth surfaced, as discus like to forage along the bottom for food.

Discus Behavior/Compatibility

Discus are generally calm, peaceful fish, but as cichlids they can be aggressive toward one another, especially when attempting to pair off and spawn.  Shy or submissive fish should be removed if they are unable to compete. Most serious hobbyists do not mix their discus with too many other species. However, suitable aquarium mates include cardinal tetras, neons, emperor and rummy nose tetras, as well as clown loaches and dwarf cichlids such as rams and Apistogramma species. All of these fish tolerate the high temperatures and low pH/hardness required by discus.  

What do Discus Eat?

In nature discus eat a considerable amount of plant material and detritus, but also forage along the bottom looking for worms and small crustaceans.  They are omnivores and will thrive on freeze dried black worms, beefheart, frozen blood worms, and a variety of pellet and flake food. Frozen and live foods may be fed as treats or to help induce spawning.  For best results, rotate their diet daily and feed only what they can consume in 2 to 3 minutes, once or twice a day.

Discus Breeding Level – Difficult

Captive bred discus will pair up and spawn relatively easily, but young, inexperienced parents may eat their eggs the first few times, particularly if other fish are present.  After hatching the young feed on heavy body mucus secreted by the parents for a few days until they begin to free-swim.  Parents will transfer the young back and forth several times a day.

Q: How are your stated fish measurements conducted?

A: All measurements are made from tip of nose to end of tail. Photographs are representative of the strain or variety, and not the exact specimens that will be shipped.

Q: How do I make a purchase?

A: Every discus you see on our website is available for immediate purchase and ready to be shipped to you. Click the “Add to Cart” button on your desired products, adjust your quantities, and follow the checkout instructions. We honor all special requests. Please allow a 2-day minimum handling period for discus.

Shipping Tiers for Live Tropical Fish: 

  • Discus/Altum orders over $600: choice of a free gift of a breeding cone or t-shirt. Use the promo code BONUS-CONE after adding your selection to your cart.

Blackworms: Free USPS Postal Shipping

Plants: $10 FedEx Priority Shipping, Minimum Order: $15

International Buyers Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to purchasing.


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