Last updated at 08/05/2026 06:31:21
Seachem Reef Complete (SC33305)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Reef Complete 500ml - Aquaristic Online
Delivery $14
Seachem Reef Complete 500ml
Delivery between 15–18 May $10.91
Seachem Reef Complete - AquaticSupplies.com.au 500ml
Delivery between 14–19 May $11.95
Seachem Reef Complete Calcium 500ml
Delivery between 12–19 May $9.50
Reef Complete 500ml
Delivery between 14–17 May $29
Seachem Reef Complete 500ml | The Tech Den
Delivery $9.50
Seachem Reef Complete 500ml
Seachem Reef Complete 500ml (SC33305)
Delivery $14.99
Seachem Reef Complete 500ml (SC33305)
Delivery $14.99
originally posted on charterhouse-aquatics.com
Seems to do what it is supposed to.
originally posted on ebay.com
Easy to use excellent company
originally posted on petco.com
This product takes care the reef needs in 1 bottle; no need to collect a basket full of products to get what you need.
| Is Discontinued By Manufacturer | No |
| Product Dimensions | 16.51 x 6.35 x 5.84 cm; 703.07 Grams |
| Country of origin | USA |
| Liquid volume | 500 Millilitres |
Seachem Reef Complete (SC33305)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Reef Complete 500ml - Aquaristic Online
Delivery $14
Seachem Reef Complete 500ml
Delivery between 15–18 May $10.91
Seachem Reef Complete - AquaticSupplies.com.au 500ml
Delivery between 14–19 May $11.95
Seachem Reef Complete Calcium 500ml
Delivery between 12–19 May $9.50
Seems to do what it is supposed to.
Easy to use excellent company
This product takes care the reef needs in 1 bottle; no need to collect a basket full of products to get what you need.
This is nice since you dont have to worry about mixing powders. This is already premixed with mag and stront as well. So check your levels. My tank resently dropped horribly in cal, small amounts in mag, and no alk. So this worked really well for me. Read the directions and take it slow. Jumping ppm can be bad even if things are low. Water change Water change Water change. But if that isnt working and you need a bit more. This is the product for you.2 negatives.1)It is a bit pricy2) there is nothing between 250ml and 2 liters. a nice 500ml-1L would work great. i have a 30 gal reef so a tiny bit goes a long way.
Great product, have used for years.Doesn't seem to go bad.Have had old formulation that turned cloudy, was told it was Strontium precipitating out, but was still good.This doesn't happen any more. Great for keeping Calcium levels high to promote coral growth.\n\nExpensive unless you buy in bulk.
I have had my saltwater aquarium for about 5 years and there has been a lot of experimenting with products. I have used different product but this product eliminates the frequent testing of your water.
Best product and good price
This product worked for me in raising my Calcium level
ive been using reef complete since i started my tank 21 years ago i trust nothing else
| Is Discontinued By Manufacturer | No |
| Product Dimensions | 16.51 x 6.35 x 5.84 cm; 703.07 Grams |
| Country of origin | USA |
| Liquid volume | 500 Millilitres |
Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Complete ) and carbonates (Reef Builder or Reef Carbonate ).
Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Complete ) and carbonates (Reef Builder or Reef Carbonate ).
Seachem Reef Complete 500ml
Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Complete ) and carbonates (Reef Builder or Reef Carbonate ).
Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Complete ) and carbonates (Reef Builder or Reef Carbonate ).
in 13 offers
The lowest price for Seachem Reef Complete 500ml right now is $24.00 at Aquaristic Online, compared across 13 retailers.
The all-time low was $18.20 on 30 July 2025 — today's price is 32% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 May 2026.
