Advice On Plant Care

[FingersofFish]

Hi there, I've delved into the world of planted aquaria, and am hoping to have a fairly heavily plated tank eventually.
 
At the moment it's fairly lightly planted, 3x Crypts (various) with 2 more waiting to be delivered, 3x Water sprite and 5-6 java ferns. I originally had some giant vallis and vallis but have removed prior to starting with liquid carbo.
 
Tank is 70L, tropica planting substrate underneath natural gravel.
 
I am currently doing EI ferts dosing (10mL) Pottasium Nitrate 3x weekly, (5mL) Pottasium Phosphate 3x weekly, (1.4 mL) Seachem Flourish 3x weekly and Easy Carbo (1.4mL) Daily. with a 50% water change every 7th Day.
 
Circulation is ensured by a 650 L/pH circulation pump + 1100 lpH trickle filtration above tank. Lighting is on for 7 hours daily LED (around 6 w/pg equivalent i believe) and temperature is a constant 24 degrees celcius.
 
My plants do not seem to be thriving however, the Java fern (attached by nylon thread to wood) are going brown, the water sprite is very pale, and the crypts are getting spontaneous holes in the leaves. I started dosing EI 3 days ago, prior to this the Water sprite and Java fern had been in the tank 3 weeks with no ferts or carbon.
 
I am looking for advice on which plants would suit this aquarium set-up and if there is anything I am doing wrong, or not doing that would aid healthy plant growth in terms of ferts etc.
 
Also does anyone know what the issues with the plants are, or would I expect these to dissapear in the following weeks now that I have started dosing.
 
Thanks for any help!

 

[DerpPH]

when you add ferts the plants usually die back and regrow in the process.  In my experience those plants are hardy as I have collected them here in the stream in my country. Might I suggest adding dwarf sagittaria and some java moss to help reduce the excess nutrients. also make sure the gravel doesn't compact much. In my experience Malaysian trumpet snails prevent that but they can be unsightly to watch in large numbers, but assassin snails can help control their population. Also try adding floating plants to help absorb excess lighting like water lettuce. but Also post your water parameters because there might be something wrong with the pH og Hardness