co2

Hello, I'm new to saltwater tanks and planning the setup for my first one, a 20-gallon. I'm a bit confused about pH and KH. What is the KH level I should be striving for? It seems there are different answers online. Or does it depend on the fish? How can I increase or decrease KH? My...

The following items are for sale as a package. This is everything you need to setup a fully functional calcium reactor for your tank. All products have all been cleaned and are in perfect working condition having only been in use for about 6 months. Total retail price new $1000. See pictures...