im wantin to start a SW tank and im not sure exactly what i have to get. i have a 20 gallon tank that i gonna to use. i already have the sand, sea salt, hydrometer and some Kent water treatment that helps maintain the pH. is there anything else that i need to get?
another question is would you recommend a protein skimmer or regular filter system. if the regular filter system is better, can i use one that is for freshwater or do i have to buy a salt water one?? and also...is it better to put the water in first then add the sand or the sand then the water??and does the protein skimmer/filter have to be goin during that process?