This is a discussion on what am I going to do? within the Saltwater Aquarium Equipment forums, part of the Beginner Saltwater Aquariums category; -->
I only have one powerhead in now I have 3 of these to put in when the tank cycles. It looks like a small ...
A koralia 4 is a good choice for a 125g tank, I know several people that run them. I'm running very similar in a 75g. Your sand will need several days to clear up anyways. What type of sand did you buy? If it was sugar fine that stuff takes a while to clear up.
it is a mix but most is the smallest grain they had. red sea sand or somthing like that it was a live sand with a garenty of 20,000 ppm good bactiria or something like that. they also sold some sand straitht from key west. but he said it could have bad stuff in it with the good stuff.