Less is more. Stop feeding the plants and let the tank do its thing. Plants **need** nitrates, so frequent water changes and adding things to get rid of nitrates will cause them to yellow and melt. For planted tanks, you want nitrates of at least 30ppm.
The fluval substrate is an active substrate, it’s not a general shrimp substrate. It’s for caridinas which are usually acidic water shrimp (look up active substrates and their effects)
Also dosing ferts is useless if plants do not need them, and shrimps do not like nutrient rich environments
For a new tank, it takes a while for plants to settle in. And youll be dealing with arameter swings since using active substrate
Sad-Difference5714 
Less is more. Stop feeding the plants and let the tank do its thing. Plants **need** nitrates, so frequent water changes and adding things to get rid of nitrates will cause them to yellow and melt. For planted tanks, you want nitrates of at least 30ppm.
The fluval substrate is an active substrate, it’s not a general shrimp substrate. It’s for caridinas which are usually acidic water shrimp (look up active substrates and their effects)
Also dosing ferts is useless if plants do not need them, and shrimps do not like nutrient rich environments
For a new tank, it takes a while for plants to settle in. And youll be dealing with arameter swings since using active substrate