What do you think the problem is with the plants in this picture
 

Low light plants, using 1 T8 25W 8000K light, 55 Gl tank
no chemicals added, plants were fine when i got them 3 days a go.

not enough light, low light plants should have about 1 watt per gallon at minimum. could also be lacking nutrients, i suggest root tabs and liquid ferts. im not 100% sure plant number 1 is fully aquatic, could you post scientific name/store of purchase?

better yet, instead of guessing what are you water params? ammonia,nitrite,nitrate, ph, temp. what do you feed, how long are your lights on, whats in the tank so on and so forth.

plant number 1 looks ike a dwarf anubis its a plant that prefers high lighting

OK: 55Gl
2 HOB Filters AC110 AC70
Air stone
Temp at 82
Nitrate at 10
Nitrite at 0
GH 25
KH 10PH
PH 6.2
Chlorine 0
Amonia 0

2 angels
2 corys
4 RGB

was fighting greenish water the natural way, no chems
no salt in the tank
yesterday started using flourish

Now using 2- 25W 8000K lights

tank is 3yrs old, no problems of late just some light green water
plants are from this weekend

Yes, Java fern and dwarf nana and some moss

I though anubas are low light?

You should really be dosing ferts, or using CO2 with plants. Flourish Excel may hold you off for now.

And I personally do not think 8000k will work for growing plants, at least well. You want 6500k-6700k full spectrum. Even 5000k is better IMO.

Thanks cody, what about the spiral daylight bulbs they sell in Home depot, can they be used?

Yes, but if you have T8's, you want tube bulbs and not screw ins. All of the tube lights I have seen at Home Depot are lower in kelvin rating than 5500k.

I will take a look, Thanks Cody