What can I add

[scarecrow]

Ok so it has been a week since I figured out what was killing everything I put in the tank ! My soul survivor was a baby clown and som snails and some crabs . Now the the tank is doing well and I want to start adding to my lonley clown . My tank is 30 gallons and the guy who looked at my tank said I would need to get better lighting to start coral , right now I have L.E.D day lights ??????

 

[mr. limpid]

It easier to make a list of what you want and people will comment on your wish list.
Also if you want coral you need to explain what is LED day lights, give name of brand and type, if you know what watt the diodes are.