Algae trouble

[reefk]

Had a tank crash a month ago as my doser failed and caused Alk swing. Tank is recovering slowly but there is a lot of algae. My cheto is not growing as these algae are growing all over my glass.

• Will Hydrogen peroxide dosing help?
• How much should I does?
• WIll it affect my shrimp?

My nitrates are around 50 ppm which is high but I have never had it below 25 pm in years that I has it.

Tanks is 120 gallons bare bottom and been running for 3 years
1 Purple tang, 1 Yellow tang, 1 CBB, 1 Sixline Wrase, 1 Azure Damsel, 1 Royal Gamma, 2 orange clown, 2 cleaner shrimps. Manly LSP and have lost of SPS frags.

 

[reefk]

Here are the pic

 

[NowGlazeIT]

You can try to extend the light schedule on the chaeto and reduce the display light schedule for awhile.

 

[waleedreef]

remove algae manually and do water change. cheto require phosphate, nitrate and iron. you can dose iron to refresh the cheto. Cheto will fight green algae.