1st Clone with Damage Leaves Had a Transplant

this is my first clone..i had a sponge and the plant was growing roots..so i transfer it into fox farm ocean forest.. then i didnt know i watered it with fish fertizler.. i stop doing that ..and i been overwatering it from what i read..but for the question i want to ask is my plant is drooping a little.. and 1 leaf is showing yellow and black spots on it..it is the bottom leave..will this plant survive? i have 4 cfl bulbs running daylights..
i was thinking of using superthrive? how will my plant survive any suggestion

leave it alone before you mother it to death!! its a weed! relax. fox farms soil will have enough food for the plant for a month or 3. let it dry out before watering it again. get another cup the same size you have and fill w/soil. never water it,use it to compare weight w/ your plant. when the plant gets close to the weight of the cup of dry soil,water it good,allow some run off. dont water again till it weight the same as the soilcup.
NO NUTES! for at least 6 weeks, then start SLOW! the plant wont die from no nutes but is easy to burn by overdoing it.

i was thinking about nutes cus there yellowing but the plant is so small.. and it dont want to ruin the roots ..water will do its job?