Which Deficiency Please

mastin

Junior Poster
Jul 5, 2009
21
0
1
Which deficiency(ies) please?
I have a 50 gallon aquarium
5 T5 bulbs with two on for 10 hours and all five for a couple
EI fertilization
two bubbles a sec CO2
weekly 50% water change then 3/4 tsp Ultimate GH Booster (GLA)
MWF 1/2 tsp KNO3, 1/8 tsp KH2PO4, 1/8 K2SO4
TTh 1/8 tsp Plantex CSM+B (GLA)
Pfertz root tabs
Daily 1 tsp Seachem Excel
First pic holes in Anubias Nana (they are really only getting nutrients from water column as they are attached to driftwood).
Note the degraded edges of cryptocoryne spiralis in second pic.
Also any ID on the rust green colored leaves in second pic (also lots of holes here)?
Lots of other fast growing plants, not shown, growing just fine: alternanthera reineckii, hydrocotyle tripartita mini, hydrocotyle verticillata, ludwigia-arcuata, riccia fluitans, rotala-rotundifolia-ceylon for example.
Thank you!
 

mastin

Junior Poster
Jul 5, 2009
21
0
1
Ok, so I had a suggestion of calcium deficiency.
This might make sense.
We have well water that's full of everything and so I'd NEVER added any GH Booster.
Then I bought a RO system a couple of years ago and forgot I might need to be adding back minerals!
I only started adding GH Booster a month ago.
Currently I'm adding 3/4 tsp of GH booster with every weekly 50% water change.
Should I up it to 1 tsp weekly?
Are there disadvantages to too much GH booster?

notes:
pH runs about 7.1 pre CO2 to 6.8 before bubbles off.
36ppm CaCO3=2.1kH
RO water is 3-5 ppm TDS
Sun pre GH booster before fertz begins 110ppm TDS post GH booster 143ppm TDS
up to Sat post micros 222ppm TDS
77.6F