Problems with tomatoes seedlings.
New to here and gardening. Notice over the last few day I was having some problem with my tomato seedlings. Getting brown spots on leaves. And leaves curing down. Seedlings are about 4 weeks old. Had them in house under grow light for 8-9 hours a day. It seems, it hitting my cherry first, but do have a few spots on my early girl as well. The big boys and super steaks looks ok for now. Hoping the problem doesnÃ¯Â¿Â½t infect them later. IÃ¯Â¿Â½m thinking I had water them to much after they came up. Hoping I wont have to start over. ThatÃ¯Â¿Â½ll put me 4 weeks back. Thanks for any help.
List of tomatoes
Right bright cherry (no brown spots 2 plants)
Sweet cheery 100 (brown spots 2 plants)
Yellow pear (brown spots 2 plants)
Early girl (brown spots 2 plants)
Super steak hyb ( no spots 2 plants)
Big boy (no spots 2 plants)