Plants turning yellowish/brown. Help.

[Dre619]

Attached is photo of some plants in my tank. Well established with a few guppies. Haven’t changed anything to normal routine. Leaves started to turn yellowish with brown spots. Any ideas?? My banana plant also is getting soggy leaves and white coloring. Please help.

 

[EgotisticObeseChihuahua]

Dang, freshwater on a saltwater forum?? I haven't the slightest clue as I know nothing about plants.

 

[saltcats]

What do your nutrient levels look like? Def looks like a deficiency to me; the folks on plantedtank dot net are usually pretty good at ID'ing exactly what you're deficient in by the appearance of the leaves :)

 

[twentyleagues]

I see you've got aquasoil in there so it'd probably be trace minerals. I think low potassium causes leaves to yellow and deteriorate. You may need to check iron also.

 

[saltcats]

Although depending exactly what is meant by "well established" could be the aquasoil is depleted; IIRC it has a typical lifespan of 1-2 years depending on nutrient uptake?

 

[twentyleagues]

Although depending exactly what is meant by "well established" could be the aquasoil is depleted; IIRC it has a typical lifespan of 1-2 years depending on nutrient uptake?

Pictures look not too old. That stuff breaks down to silt when its really old. Doesn't appear to have a ton of plants either.