Sera Marine Component 5 Strontium 250ml[Volume - 250ml]
SKU: 25182230099

Sera Marine Component 5 Strontium 250ml[Volume - 250ml]

$61.20 $68.00
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Description

Sera Marine Component 5 Strontium 250ml[Volume - 250ml]The Sera marin COMPONENT 1 7 set is designed for the discerning marine aquarist, providing corals and various lower animals with seven essential ingredients that are perfectly harmonized. Includes vital strontium Strontium, along with the macro elements magnesium and calcium, is a crucial element for corals and other invertebrates, requiring regular supplementation. Dosage: Utilize the cap as a measuring tool. Weekly, add one capful of Sera marin

The Sera marin COMPONENT 1 – 7 set is designed for the discerning marine aquarist, providing corals and various lower animals with seven essential ingredients that are perfectly harmonized.

Includes vital strontium

Strontium, along with the macro elements magnesium and calcium, is a crucial element for corals and other invertebrates, requiring regular supplementation.

Dosage: Utilize the cap as a measuring tool. Weekly, add one capful of Sera marin COMPONENT 5 - strontium for every 100 liters of seawater. Sera marin COMPONENT 5 - strontium has been formulated in conjunction with Sera marin COMPONENT 1 and 2. The requirement for strontium is proportionate to that of calcium.

 
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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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SKU: 25182230099

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4.2 ★★★★★
Based on 1533 reviews
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Verified Purchase
Melissa in JAX
Alexandria, US
★★★★★ 2
Didn’t last long
Size: Medium, Size: Medium
One of my puppies chewed the rope apart within an hour. They still have one of the balls and play with it often.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
P
plumber@1024
Grantham, US
★★★★★ 4
Good for playing tug of war, but better with a knotted handle
Size: Medium, Size: Medium
Strong and durable rope ball. I use it to play tug with my Doberman Pinscher -- at least until she decides that she's taking it, then she does!! The size is good, list of price is a good value for two, and my dog has a lot of fun with it. As you can see in the picture, there was not a knotted handle at the end. I was never a boy scout and don't know my knots and so anything I try to tie comes apart when we start playing. It would be nice if it came as it looked in the listing: with a knotted loop at the end.
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Reviewed in the United States on February 3, 2026
T
Toasty
Grantham, US
★★★★★ 4
Pricey for quality but my dogs love them!
Size: Medium, Size: Medium
This toy is a bit on the pricey side for what it is, and no matter how many times I try to tie it, I just cannot get it to stay secured. I really like the idea behind it, but the overall quality feels just okay rather than amazing. The ball itself is very lightweight and almost feels more like a dense foam than traditional rubber, which initially threw me off. That said, it has actually been holding up well with regular use, which is a pleasant surprise. Most importantly, my puppies absolutely love these. The biggest win for me is that it comes as a two pack, which means I can play with both dogs at the same time without anyone feeling left out. At the end of the day, my girls are happy, and that makes me happy too.
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Reviewed in the United States on January 20, 2026
T
Verified Purchase
The Millers
Battle Creek, US
★★★★★ 5
Soft and warm!
Color: Grey & Blue, Size: Large
These are so comfy and colors are awesome. I don’t dry in the dryer! Keep my feet warm all day long. Perfect stretch and softness.
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Reviewed in the United States on February 13, 2026
E
Verified Purchase
erira
Waukegan, US
★★★★★ 5
Great socks!
Color: Blue & Green, Size: Medium
Super comfy, and fits as described. Loved the colors, and they keep my feet dry + warm!
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Reviewed in the United States on December 8, 2025

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