Kalk how to use it and should i?

[Tarolisol]

The water is in the tank and everything is running. Im letting the water heat up and should get it salted by tonight. I connected a air pump to my pump to see how the flow was and its not to bad even though i have crazy angels everywhere i would love to show everyone a video but im not sure how to post it. Is it the same as pictures? I have my sequance reefflo dart and the 4-way does cut down on flow a bit.