Originally Posted by Luna09
Yes it would, you will also have to add marine salt back into your aquarium by dissolving it in some dechlorinated water before adding it to the tank.
Sorry but if he did that he would kill his fish.
You have to mix new saltwater in a container. Like a 5g bucket. Mix the salt into the water until the salinity is reached that matches the salinity of the tank. If using tap water now is the time to add dechlorinator. Place in a heater to heat the water to the same temp as the tank. Make sure the water is thoroughly mixed and the salt dissolved at let sit for a few hours to be sure everything is dissolved and properly mixed.
Drain 5g (or whatever amount you are changing and replace with the new mixed saltwater.
Pm me if you need further help
29g Mixed Reef, 150w 14k Phoenix MH w/ Moonlights, Reef Octopus BH1000 HOB Skimmer, Ecotech Vortech MP10es, ReefKeeper Lite (Plus), PH Probe, Temp Probe, ATO, Carbon/GFO Reactor.