hello everone. im new to the salt water aquarium world and have a few questions about getting started. i have a 20l tank with crushed coral and an undergravel filter. i dont have any fish yet nor have i added any salt. so far my biggest concern is the cloudlyness from the crushed coral. any time i try to smooth it out it gets cloudy again. is there anything i can add to it to help it clear up or should i switch to sand? if i switch to sand what type of filter should i use? which is better crushed coral or sand? also how much and how do i add the salt? any help would be awsome.
thanks,
umphlettm
thanks,
umphlettm