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Description
[ARRIVING 14-MAY-2026] Otocinclus Arnoldi Great for Shrimp Tanks and Algae Control 2-4cmOtocinclus arnoldi (Arnolds Oto Catfish) Gentle algae grazer for established nano tanks Quick Facts Size: ~34 cm Tank size: 2060L+ Difficulty: Moderate Temperament: Peaceful Best kept: Groups (4+) Plant safe: Yes Is this for you? Good if: Established tank (34+ weeks) Looking for light algae grazing support Peaceful community setup Willing to keep a group Avoid if: New or unstable tank Expecting a full algae solution Aggressive tank mates Keeping only
Otocinclus arnoldi (Arnold’s Oto Catfish)
Gentle algae grazer for established nano tanks
Quick Facts
- Size: ~3–4 cm
- Tank size: 20–60L+
- Difficulty: 🟡 Moderate
- Temperament: Peaceful
- Best kept: Groups (4+)
- Plant safe: Yes
Is this for you?
✔️ Good if:
- Established tank (3–4+ weeks)
- Looking for light algae grazing support
- Peaceful community setup
- Willing to keep a group
❌ Avoid if:
- New or unstable tank
- Expecting a full algae solution
- Aggressive tank mates
- Keeping only one
Why this fish?
Otocinclus arnoldi is one of the smallest and most peaceful catfish available, making it ideal for nano aquariums. They stay small, are plant-safe, and gently graze on soft algae and biofilm without disturbing your setup.
Common mistakes
- Adding to new tanks → high mortality
- Expecting them to clean all algae
- Keeping them alone
- Not enough natural food (biofilm)
- Keeping with aggressive feeders
Care made simple
- Temperature: 22–26°C
- Diet: Biofilm + algae wafers
- Group size: 4+ recommended
- Water: Clean and stable
- Tank: Established setups only
Pair with
- Algae wafers
- Driftwood
- Sponge filter
- Live plants
NTA Insight:
Most issues with Otocinclus come from unstable tanks and lack of food — not shipping. If your tank is too new or too clean, risk increases significantly.
Most issues with Otocinclus come from unstable tanks and lack of food — not shipping. If your tank is too new or too clean, risk increases significantly.
FAQ
Do Otocinclus eat all algae?
No. They mainly eat soft algae and biofilm.
Can I keep just one?
No. They do best in groups of 4 or more.
Why did my Otos die quickly?
Usually due to new tanks, lack of food, or stress.
Do they need feeding?
Yes. Supplement with algae wafers.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Awesome product 👌
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
I love this stuff. I use it alot.
Sticks great
Easy to use
Molds super easy
Really helps with sound. Great product.
I wish I could get sponsored for this product on my projects..
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Good product at a good price
Style: 80 mil 36 sqft
This product works great and easy to install.
I do two or more vehicles a month.
I switch to this brand a year ago and would recommend to everyone of my customers
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Reviewed in the United States on April 16, 2026