Originally Posted by CEverii
Awesome thanks a lot. I think im going to play around with it for a while. Im going to go catch some baby fish out of the inlet near my house (red drum, grouper, flounder) and see if i can raise them and how it plays out with the strategy he uses.
Agree with others that this is really NOT a good idea. How you do with wild fish (illegally caught and housed, most likely) like these will not give you a good indication of how you would do with "normal" saltwater fish.
Personally, I don't think your friends way of doing maintenance is too great. He/she might be getting away with it, but it's just a matter of time before something bad happens in the tank and then they won't have a clue what caused it. A lot of nasty things can come in with "wild" water and it could always cause problems. I'm a huge advocate of RO
or some type of purified water to make saltwater... but I'd use tap water loooong before I used natural saltwater (and I'm 10 minutes away from it!), no matter where it is.
I also think a heater is a must. You're not keeping coral, so you could get away with the mid 70s for tank temps, but it seems like your tank is going to drop below that during some of your "cold" snaps. Granted... I'm not from FL, but it just seems like your place is going to get colder than your tank temperature at some point during the year.