Fertilizer Recommendations?

[Neleono]

Hello!
I have 2 tanks in my possession, one 29 gal and a 10gal planted tank. In the 29 gal tank I have some anubias species, amazon swords, and I just got some floating plants. Likewise, in the 10 gal, i have some amazon swords, java fern, anubias, and hairgrass, along with some java moss and floating plants. As for fish, the 29 gal has 4 platies, and 6 neon tetras, along with an algae eater, and for the ten gallon, I have a betta and a snail. Lately the plants in my tank have started to turn yellow and melt back a bit and I feel like that might be a problem with the fertilizer. In both tanks I have thrive root tabs for the root feeders, and in the 10 gal I have aquarium soil under my substrate but other than that I have no fertilizer. Should I be adding some or is this a different problem. If so, what fertilizer do I use? Thanks for the help!

 

[mbsqw1d]

If you do add liquid ferts you'd only need a very small amount. You've mainly got root feeders which are sorted with the soil/root tabs. The others, such as anubias and Java fern, are slow growers so won't appreciate too much ferts as you'll just end up with algae issues

 

[Colin_T]

Pictures of the plants?
How long are the lights on for?
What sort of lights are on the tanks?