Видео с ютуба How To Raise Water Hardness In Aquarium

Aquarium Water Hardness: What You NEED To Know

Fish Tank Water Hardness Fully Explained: Don't Kill Your Fish!

Aquarium pH, GH, and KH for BEGINNERS​

How to Soften Aquarium Water (Decrease Hardness)

How to raise Water PH? Why does it matter?

Nitrates and Water Hardness - Two Problems that DO NOT EXIST!

Soften Aquarium Water Fast: Lower GH, KH & pH Easily!

Параметры воды в аквариуме с растениями для начинающих (pH, GH, KH) | Обзор аквариума с растениям...

Aquarium pH, GH & KH: What You ACTUALLY Need to Know

Подробный анализ общей жесткости (GH) для аквариумов с креветками

how to raise KH and GH

Понимание KH и карбонатной жесткости — нужно ли вам это?

Aquarium pH and Water Hardness

Mastering pH, KH and GH: Beginner's Guide for aquarium and pond

HOW TO: lower PH for your Tropical Fish Tank

Beginning Guide To kH Part 3 - How To Raise Or Lower A Tank's kH...

Shrimp Water Parameters Explained: pH, GH, KH, and TDS

How to Raise pH in Aquarium!