I myself don't use compost teas anymore as it's easier to put worms in the soil and let them do their thing. When they poop you have the best organic material you could ask for right in your soil. If you do see what might be cal and mag issues you can always water with epsom, or add oyster shell meal/dust, or just mix in dolomite lime from the get go. The lime takes longer to get going so it's best done at the beginning of the grow. Sometimes people mistake cal and mag def for N def too which is easily solved with kelp meal top dress or watering with fish fertilizer.
The only teas I do anymore are with molasses during flower or with organic corn seeds. I have simplified my feedings a lot with the no till since adding worms and it's working beautifully. I alternate waterings with ful-power and fish fert, and then ful power with coconut/aloe/silica powder.
Let me know if you have any other questions.