Help Plants Seem To Be Rotting

[BaylorPerez]

so lately my plants do not seem to be getting any better with my daily plant food being added for them
 
what do i do? i add 4Mls(4-5Gallons worth) of plant food per day for my 3 plants.
 
Photos of plants now and the food i give them.
 
 
 
Edit... cannot add photos, they are to big for what is being allowed

 

[BaylorPerez]

Plant food im using
 
Aqueon
Aquarium Plant Food
(to many indegrediants to post

 

[Chad]

What kind of plants are they?

 

[BaylorPerez]

2 pygmy Chain swords and 1 undanata

 

[Chad]

Do you have them in a substrate designed for plants or in gravel? 

 

[BaylorPerez]

gravel substrate

 

[Chad]

I guess I still need a lot more information...ha...should have just asked it all to start with.
 
How old is the tank?
What fish are in it?
How big is it?
What lighting do you have?
Are you running Co2 for the plants or just ferts?
 
I think that covers it...

 

[StevenF]

The fertilizer you are using is mainly a micro fertilizer.  But it only has a fraction of the micro nutrients plants need.  In my experience being short in just one micro nutrient can dramatically slow or even stop plant growth.  I have had much better luck with complete micro fertilizer such as Seachem Flourish (which I am using now).   Note most Aquarium don't have enough light or CO2 to require fertilization daily.  I mainly fertilize after a water change and I only add enough fertilizer for the water I add.  So if a do a 5 gallon water change in 20 gallon tank I will only add the amount of fertilizer recommended by the label for 5 gallons.  If you fertilize for 20 gallon you will over fertilize and over fertilizing could actually slow plant growth.  Since you are fertilizing daily it iis likely that you are over fertilizing your tank.
 
Note you fertilizer only has one macro fertilizer (potassium)  You are  not adding nitrogen or phosphorous.  However based on everything I am seeing in all of your other posts you are unlikely deficient in macro fertilizer.  In fact fish food should supply all macro fertilizer  you would need.  
 
The other possible issue is the lighting not having enough light can cause problems but you haven't said anyting about the light.

 

[BaylorPerez]

i do flourescent ligting for about 10hrs. 60Watt light

 

[Byron]

Fluorescent lighting at 60 watts over a 20 gallon tank is a great deal of light.  I will assume as this is fluorescent it is T5, and not T8?  It should have this printed at one end of the tube.  And if you could give us any other data printed there, it would help.
 
Too much light is as bad as too little.  Even though we are missing some info that Chad asked for, I think it is a fairly safe bet that the light is too bright, certainly more than needed for the plants mentioned.  Do you have algae issues?
 
Byron. 

 

[BaylorPerez]

yes but the algae is being cleaned regularly when it gets to much on my side of the tank as its a 20gal wide, it doesnt seem to have much difference as it is a t5(what came with the tank lid when i bought it. should i need to limit the light?

 

[Byron]

yes but the algae is being cleaned regularly when it gets to much on my side of the tank as its a 20gal wide, it doesnt seem to have much difference as it is a t5(what came with the tank lid when i bought it. should i need to limit the light?

 
Probably.  Lessening the duration down from 10 hours may help, but this is still very bright lighting.  Chad and Steven may have some thoughts now that we are getting more data.