as far as water & Ferts-- some people WAY over-do!
water ONLY when the top 2 inches of soil have completely dried, but no deeper than 3 inches! Then water enough that after about 20 minutes, a few drops come out the bottom.
You do realize that JUST fish emulsion alone is NOT enough for your plants? You need a balance of N-P-K AND a BUNCH of minerals just not found in fish emulsion!
Go to the Tutorials index (link below!) and look atthe different tutorials on nutes-- verry helpful!
And NEVER use nutes at full stregnth! most use em at 1/2 stregnth and use every other, or every 3rd watering session.