Can you let us know what you are using for lighting and filters? Your point view for landscaping is great, It looks just like a massive mountain coming out of the forest. Great tank
That is for sure one of the top five tanks i seen to date ( fresh water )
I am a shrimp and snail lover so its just awesome to see your tank
If your going to dose ferts and use Co2 maybe this link might help.
You need to be careful with ferts some has high amounts of cooper and unsafe for shrimp and snails )
Keep us posted
http://www.planetinverts.com/Dosing%20Fertilizers%20with%20Shrimp.html