Great communication, fast shipping, will do icp test after first month.

I tried Perfect Corals Kalkwasser and have been pleased with the quality. It keeps my saturation levels high and is very clean. I plan to continue using it.

Great product seen improvements in 2 days with some of the coral. In my tank.
Easy to deal with easy to use.
We'll continue using in the future

Start low doses and daily until you reach your desired level

corals are loving theses Amino’s!

Im about 4 days into the solution and already notice a big difference!

Product is awesome, and the customer service is even better.

I've used several brands of GFO and this is the cleanest of all I've had experience with. This product also seems to last much longer than previous GFO brands that I've used before. It was also the best price available that I could find online.

The corals love when i dose these aminos!

Amazing results with polishing my water.

Best move ever

Super fast delivery to my door

I would absolutely recommend thes company..they are very nice people and really want to help you succeed on having your aquarium happy and healthy..they answer all of your questions even on weekends!!

Amazing product!!! Best salt I’ve used price to quantity wise!!! Mixes clean and fairly quick!

My 40 gallon system suffered from chronically low Ph and I was at my maxium dose as far as kalkwasser due to being limited by evaporation. I went ahead and purchased the high pH verison of the two part as well as the customized verson of trace elements after ICP testing. After tuning in my dosing my pH is up significantly without the crash at night that was getting down to about 7.6. The corals are growing faster than ever and colours have improved. All within less than 30 days

The team is also always avilable for the many questions I had. I highly recommend the two part solution as well as the trace elements!!