chasv77answered grow question 5 years ago Hmmm, I wonder why you are adding cal-mag unless you read it somewhere to do that, when only using the Tiger Bloom(it has all kinds of metals and minerals in it).
I use the FF TRIO pack for my feedings, so I get all my cal-mag requirements from their solutions.
I would flush with water for a couple of weeks then use a 50% solution of their Big Bloom(organic), with 50% Tiger Bloom.
This is just a suggestion and not to force you to buy another product.