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๐ Keep your reef thriving with the purest calcium boost on the market!
Seachem Reef Complete 500ml is a premium liquid ionic calcium supplement delivering an unmatched 160,000 mg/L concentration. Designed to maintain natural seawater calcium levels without affecting pH, it also provides balanced magnesium and strontium to support optimal coral growth and health. Its 100% soluble, clear formula ensures easy dosing with no residue, making it a top choice for reef aquarists seeking reliable, effective calcium supplementation.

| Brand | Seachem |
| Customer Reviews | 4.7 out of 5 stars 738 Reviews |
| Item Form | Liquid,Ionic |
| Item Weight | 0.6 Kilograms |
| Liquid Volume | 500 Milliliters |
| Manufacturer | Seachem Laboratories, Inc. |
| UPC | 015568976964 000116033305 |
J**N
Quick and easy to tank of corals
Good stuff to add to aquariums
D**.
Keep your corals happy!
Works as it should, priced competitively, so whats not to like? Great for getting your calcium up with minimal solution. I use it in conjunction with the Reef Fusion 1 & 2, but this gets the calcium and magnesium up without iron that can be utilized by algae. Also it is more concentrated than the Reef Fusion 1, so it is very useful when your calcium levels take a dip and everything else is fine. If you plan on keeping SPS, or honestly even LPS healthy, checking and maintaining ideal calcium and magnesium levels is a must. For the price, this is a great additive for new and experienced reefers alike.
A**R
Awesome!
I keep a mixed reef tank. when i started to dose my hard corals showed impressive growth.
Y**I
Excelente rendimiento
Desde que uso Seachem Reef Complete, he notado un cambio muy claro en la estabilidad de mis parรกmetros y en la salud general de mis corales. El producto viene bastante concentrado, asรญ que con una dosificaciรณn pequeรฑa ya logro mantener el calcio dentro del rango ideal sin necesidad de estar aรฑadiendo grandes cantidades todos los dรญas. Lo que mรกs me ha gustado es que no solo sube el calcio, sino que tambiรฉn aporta magnesio y estroncio, lo cual ayuda mucho a evitar la precipitaciรณn y mantiene mรกs estables los niveles del tanque. En mi caso, mis blandos y LPS reaccionaron rรกpido: mejor extensiรณn de pรณlipos y crecimiento mรกs consistente. El lรญquido es transparente, sin olor extraรฑo y se mezcla rรกpido en el agua sin dejar residuos. Tambiรฉn agradezco que Seachem incluya las instrucciones con medidas claras segรบn el nivel que buscas alcanzar โideal para quienes estรกn empezando y para quienes ya llevan tiempo cuidando un acuario de arrecife. Despuรฉs de varias semanas de uso, puedo decir que es un producto confiable, econรณmico y prรกctico para mantener la quรญmica del acuario en orden. Lo seguirรฉ comprando sin duda
M**A
I will definitely purchase again
Seems to be working pretty well my Corals like it so far
J**H
Amazing!
This product is amazing. I have always had a difficult time with coralline algae but once I started to use it's made a huge difference. I now have purple spots showing up everywhere even on my ornaments. Also since using this my pulsing Xenia have grown rapidly, I have new growths literally every couple days or 3 days and I have only been using this for about 2 weeks maybe 3. This stuff is amazing
N**D
Use this all the time to supplement nutrients in reef tank
Repeat buy for me. Does extremely well at maintaining the nutrient levels needed for my corals. The price is really good as well for how much you get.
T**R
Dosing for 10 gallon aquarium
My ten gallon tank was at 340 calcium clearly on the low range and I added a total of six ML and it went up to 400 calcium making for simple math in that each ML of solution will raise calcium approximately 10 points for my size tank. Note that directions indicate this is near the maximum that should be added in a 24 hour period. Hope this helps a fellow nano tank user.
Trustpilot
1 month ago
1 week ago