pH: At least 7.6, looks a tad darker
GH: 6 drops
KH: 5 drops
I'm not sure how to read the results for GH/KH. It's the API drop kit
I used to have crushed coral in the sump but got rid of it after I redid the tank. It didn't seem to help. I'll try adding it back.
No ferts added to the tank. Is there something I should be adding?
No CO2. I do have Flourish Excel I could add if needed?
API kits 1drop = 1 degree of German hardness. So KH of 5, GH of 6. Multiply that x17.9 will give you ppm.
Not ferts exactly but studies of mollusk shells have shown that there are a great many elements needed, either as components of shell itself or used as a support element in the process of building the shell. Chemical studies of shells show many other elements in structure of shells, besides Ca, Mg and K, there are stuff like Zn, Cu, Mn as well as surprisingly even minute traces lead and mercury, both elements that we as aquarium keepers avoid like the plague. Zn and Cu levels especially are suspected as a major factor in shell formation and retention.
Thing about our closed loop ecosystem we keep is that in nature all those minute levels of odd trace elements are leached into aquatic ecosystem by millions of hectares of soil and minerals along banks as well as everytime it rains that low dissolved solid water flows over decomposing leaves and minerals and that is flushed into the water replenishing those traces.
I’m using azomite as a trace supplement, I drop 6 pellets of granular azomite in a gallon of distilled water, add .5ml thrive fert , then I use that water in my 7gal tank to keep it topped off for evaporation throughout the week. Will say my pink ramshorn snails shells are the most dense and luxurious I have ever seen them. Plants are also extra healthy.
Add 12 pellets of azomite to a gal of distilled and it will raise TDS 1 point after 24hrs. At that level in the 7gal I got a slight hair algae surge so figured half that amount might be about right.
Here’s the little bag of azomite I bought to try, in my 7gal this $7 bag should last me at least a half a decade. You can find chemical analysis of it on line. Have no idea how much Dysprosium my tank needs or if it even needs it. It does seem to be a good source of Zn @ 64ppm. Not much if any biological process happens without that crucial element. It’s a natural volcanic sediment layer mined in Utah.
I tried reading as many scientific papers I could find on mollusks and invert shell formation but it was so deep into biology and specifics of cell formation that all I got was a headache. You would have to devote your life studies to it to even come close to understanding it. Basic point is that if you think that all you need to add for proper shell development and retention is Ca your wrong, it takes a cocktail of elements in proper ratios for that to happen.