Prepare your own 4dkh solution With Proof DIY

Prepare your own 4dkh solution With Proof of KH Test DIY This solution can be used with all drop checkers. This 4dkh solution can be used with all drop checkers. It is a great way to save your money on buying 4dkh solution. All you need is distilled water which you can get from your supermarket, baking soda, couple of bottles, a measuring unit, and a syringe. Check out the video untill the end and you will find that the solution prepared is proved to be 4dkh. Prepare your own 4dkh solution - With Proof – DIY How to check co2 levels in aquarium measure co2 in aquarium 4dkh solution for co2 drop checker