Hey guys ok i need some help here am going to be moving my RTC to my other pond (1,000gallons) and the babby to a friend for awhile. Anyway am going to be changing my 2,000gallon to salt. Is there a way to change the fresh to salt? can i use some kndof "Aquarium Salt" to convert it? and when i do water changes how many gallons do you guys recomend i take out? am going to stock 2 Batrays and 2 Sharks(i forgot the name ill post it here). Thanks guys!