Stunted, Algae, Deficiencies - Plant Help

[Squatchmen]

Well somehow I can't post any of my photos on here, but I'll list some of the problems I'm having with my plants,
and would like to find solutions to them if possible

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Trimmed amazon sword, brown at cut and going down leaf, deteriorating as well

Algae is also growing on these leaves, algae is on all plants moderate to severe

Amazon leaves are curling, new leaves are small

Yellowing of leaves on an Anubias

Deteriorating leaves on Cryptocoryne

Small holes in Amazon Sword

Few leaves are falling off on Cryptocoryne

Twisted leaves on Cryptocoryne

Moderate to severe stunted growth in all plants

Deterioration / stunted growth of marimo moss balls

Bubbles coming up from substrate

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So if anyone has any good suggestions for me that would be fantastic, also I'm planning on getting another
Finnex Planted+ LED fixture. For the time being, here are my tank specs:

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55 gallons

Ammonia (0ppm) Nitrites (0ppm) Nitrates (10ppm) Hardness (240) alkalinity (150) PH (8.0)

Marineland C-530 clean filter every 3 months

water change once a month (35gal) – 15% once a week x4

Flourish root tabs added once every 3 months

Stress Zyme added every 3 months

Monthly add Melafix and Pimafix

Weekly add Kent Blackwater

Mon, Wed, Fri, Sat – potassium nitrate, phosphate, sulfate (1/2tsp) (1/8tsp) (1/8tsp)

Tues, Thurs, Sun – CSM+B (1/8tsp)

Food (slight pinch) flakes, pellets, freeze dried shrimp, frozen cube

On Friday add Garlic Xtreme, Selcon (vitamins)

Substrate, mixture of both South American Cichlid Sand and Eco-Complete

Substrate has never been shuffled or “fluffed” up since tank setup (2013)

Filter – 2 trays bio filtration (MarinePure balls) 2 trays sponges, 2 polishing pads

2 Koralia Nano 240 powerheads

Finnex FugeRay Planted+ Aquarium LED Light, and Current USA LED+


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[barmby]

How about CO2? Any CO2 fertilization?

[Squatchmen]

Forgot to mention water temp is 80F if that matters at all, but no Co2, heard a couple other people say that as well from this that I posted on a couple different forums (not trying to spam) but yeah, I'll look into getting one at some point soon

[barmby]

The fertilization regimen is a tad excessive because there are not regulated CO2 available. Amazon swords are relatively easy to flourish given the right amount of CO2 and good supply of nutrients.

[Urban Aquaria]

Yeah, plants need a balance of 3 components to photsynthesize and grow = Light + Nutrients + Carbon... if any are deficient, the plant growth will be limited by the lowest component.

Without Co2 injection, the plants overall nutrient take-up rate and light usage will still be restricted by limited carbon availability... so even if you dose lots of ferts and supply lots of light, the plants can't use much of it anyways, ending up with the accumulation of excess nutrients and excess light, which result in algae taking advantage and growing instead.