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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Reef Advantage Calcium 4kgReef Advantage Calcium is a gentle (pH 8. 38. 6) specially formulated blend of ionic calcium aimed at restoring and preserving calcium levels similar to those in natural seawater. Calcium and carbonates play a crucial role in coral growth. A deficiency in either can halt coral development and lead to a swift decline in coral vitality. Additionally, Reef Advantage Calcium contains magnesium and strontium in ratios that reflect typical usage (100: 5: 0.
Reef Advantage Calcium is a gentle (pH 8.3–8.6) specially formulated blend of ionic calcium aimed at restoring and preserving calcium levels similar to those in natural seawater. Calcium and carbonates play a crucial role in coral growth. A deficiency in either can halt coral development and lead to a swift decline in coral vitality.
Additionally, Reef Advantage Calcium contains magnesium and strontium in ratios that reflect typical usage (100:5:0.1, Ca:Mg:Sr). This ensures that these vital elements are maintained along with calcium. Unlike limewater (kalkwasser), Reef Advantage Calcium does not have a harsh pH and will not reduce magnesium levels. When used as directed, it will not affect alkalinity.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- 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]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 2179 reviews
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Product Reviews
★★★★★ 5
Decent Slim Fit Tux
Color: Midnight Black, Size: Large
This will work. In ordering the tux I don't recall seeing the set advertised as slim fit but it definitely is. My husband is 6'2" and 185 lbs. and is a runner. This suit just fits. The pants are thankfully long enough (he wears a 34/34) and the vest fits well however there doesn't seem to be an inch to spare in the jacket. He says it feels fine on, doesn't feel too snug, so that's all that matters. He needed a tux for a black tie wedding we'll be attending next month and this will fit the bill at a good price for something he'll likely never wear again. Note: the Suit comes folded up in a plastic bag and will need to be pressed before wearing.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Amazing suit and amazing price!
Color: Natural White, Size: X-Small, Color: Natural White, Size: X-Small
Can’t believe it was this cheap! Looked just like the suits friends were paying hundreds of $ for to not even buy but to rent. Would definitely recommend buying from here!
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Reviewed in the United States on May 5, 2026
★★★★★ 4
I'm going to be fair on this one
Color: Black, Size: XX-Large
TLDR; Ordered one (XL), too tight. Then ordered a size up (XXL), it was ok-ish but the sewing was horrible. Ended it up returning both and I still give them 4 stars (because this review is fair)
So to my review:
I wanted to like this suit. It had great reviews and it is, in all honesty, not that expensive. When I ordered the first suit (XL) I noticed that the fabric was super cheap but somewhat passable. The jacket did not close at all but the pants fit and they were surprisingly decent-ish. It is a slim fit suit so take it from there... the pants were tight in the leg BUT I did welcome A LOT the fact that comes with an elastic waist so it is pretty adjustable. THAT right there is probably one of my favorite things about this suit. I was on the fence of liking this suit so I thought maybe if I tried a bigger size it would made a difference.
So then I ordered an XXL and arrived the next day, great. Tried it and the jacket now fit but the pants were not the best fit of all... don't get me wrong, the elastic waist worked great and it was helpful but I definitely needed a belt for this one. Regardless, upon inspection of the new jacket I noticed that the one side was uneven. In the back, there is a separation between both sides, joined by a thin thread that joins both flaps together. You could tell that one side was longer than the other. I was upset but gave it some thought because this is what happens when you buy these type of things online, you are bound to find some items that may or may not work for you.
By the way, it comes with a nice vest (waaaaay too tight regardless the size) and a bowtie, which, in my opinion, just don't bother with this one guys
Truth be told, you can get a suit from a brand name retailer (on sale) for about $150- $200 that you might not encounter those QC issues but you might not have the same features as this one. Unfortunately, I don't have the time hoping the next one will be perfect.
It has it place in your life. If this is for a kid, prom, maybe a cheap wedding that you have to attend, it has its place given the price and features, but if you are going to use it for a gala event please don't, you will NOT look great.... that is why, even though I had to return both, I still gave it 4 stars and I will be buying a tux separates. More expensive, yes but it will also compliment my look completely. It won't be a one use only.
Hope this helps
P.S: Shipping has LOTS to be desired!! it comes in THE plastic bag that the suit comes folded in, nothing to protect it from the elements when its delivered, not even a shipping bag!!!. For that alone they will get a 1 Star (but that is on Amazon)
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Reviewed in the United States on April 28, 2023
★★★★★ 5
Symphony night
Color: Red, Size: Large, Color: Red, Size: Large
This Tuxedo fit just right on my husband. He wears a LG and I ordered a LG, perfect fit. Priced well.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Nice clean black, I did get the leg area tailored for his frame
Color: Black, Size: X-Small, Color: Black, Size: X-Small
Its worth the purchase. Purchased for prom and it ate!!! Good quality as well. Will purchase again.
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Reviewed in the United States on April 2, 2026