Enhance Marine and Reef Aquariums with Brightwell Aquatics KoraLagoon Substrat - Aragonite-Based Refugium Substrate Review

Through trial and error, I found that these rocks are the best option for maintaining a healthy and clean aquarium environment. They are extremely clean and effective at keeping my water chemistry stable, while also enhancing the aesthetic appeal of my tank. The only con is that they can be a bit pricey, but the quality is definitely worth it.

This product is a good alternative to Miracle Slime and I prefer to use it as a first choice in Refugium filter media. Rinse lightly before placing in the refugium to avoid cloudy water.

Definitely makes a difference, I use it as a refuge substrate. Wash it once, but no matter what you will muddy in the water, this substrate is of course a mixture of very fine sand (as described in the instructions). Great stuff, definitely recommend. Update: I'm 6 months old and the pad works great. Keeps my phosphate levels around 0.01 (which is way too low to be honest). I had to dose and feed extra nitrates because the substrate works so well. However, any other method is recommended.