

Deficiency?
Wandering what deficiency this is. Noticed some yellowing + brown spots on new growth as well as some inverted growth. Using rain water with 5ml calmag 5ml Micro 5ml Gro 2.5ml bloom 5ml 1:20 ag gff (for beneficial bacteria) ph to 5.8 around 4 gallons of water per bucket. I noticed that after doing a res change and getting to ph 5.8 one night, the next morning the ph went down to around 4.2. My understanding and the couple times I had ph swings is that ph will usually go up not down so wanted to ask about this. Water temps have been staying around 69-70F.
Any help is much appreciated.