Identify this algae for me?

[monzajim]

Hi all I am a newby here but I have a issue of a dark sooty looking algae ?
my set up is a 180ltr recently fitted with the twinstar 900sa v2 on a timer 70% 8hr with ramp up & down period which replaced a nicrew
also use co2, filtration is a oase 350 thermo with a ehiem skimmer helping with circulation and have started a more disciplined fert tnc complete regime upping from 3m to 10ml set up was a rescape which is about 5 months old some older plants & some new the algae does not rub off with fingers any advice would be gracefully received

 

[sparkyweasel]

Welcome!
More information would help.

Tank info guidelines

 

[G H Nelson]

Please read the guidelines for Algae help!

Dear Member Please give as many details as possible regarding your aquarium set-up, when requiring advice/help! The above will be posted at the start of each help request. Why do we ask these questions? It will stop the member posting multiple times, plus adviser's don't need to scroll through...

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[Darryl65]

Switch off the lighting for 48-72 hours and replace some of the plants

 

[monzajim]

Hi I thought I had covered my setup but here goes 😁
tank 183 Ltr 90x45x45
co2 art kit with bazooka in tank diffuser 2bubbles per second
Oase 350 thermo
Twinstar 900sa version2 8hrs @70% 2hrs 20% ramp up & 2hrs 20% down
Tropica soil & fine gravel/sand mix
plants various crypts,Java fern,taxi moss,vallis,hydrophillia sessinflora,hypocotyl pinnafida,buce. not the best when it comes to naming,did have the tags but misplaced them but most are tropica.
vallis & other broad leaf & the small round leaf plant & some of the crypts over

12mnths
other stems 5-6 mths since rescape
Tnc complete 3ml but have upped to 10ml last couple of days to jumpstart growth to try combat this algae
live stock 4 cory 1 Sae 3 honey gourami 5 neon dwarf rainbows 5 harlequin 4 brilliant rasbora 8 cardinals 4 rummy nose 4 red phantom tetra 6 amano shrimp & numerous assassins

 

[G H Nelson]

Hi
Looks not to bad, I would reduce the lighting period to 6 hours......you should be dosing 18ml per dose 2 to 3 times per week!
50% water change per week if possible.
Drop checker should be Green before lights come on!
Looks like dark diatom algae, not the best of images
Remove the affected leaves to encourage new fresh growth.
Use some of your stem plants as a floating plant....

Using stem plants as a filtering aid at Start Up!

The subject of using fast-growing stem plants as part of a filtering aid has cropped up a few times recently. This idea has been around for a long time so not new, it has benefits especially for a new set - up. I try and cover at least 50% of the water surface minimum. 1. Improves water...

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hoggie