What are these Brown Spots Spreading All Over

[Jfarooqpak]

Hi. Can you please help me identify these Brown Spits spreading all over my tank? Would love to know what they are and if they are harmful. Thank you.

 

[Aswswild]

Coralline algee

 

[shred5]

Looks like flatworms.

Some are parasitic to corals.
Some are harmless.
A good chunk feed on something specific and die without them.
Some can reach plague levels.
Some will multiply and one day die off.

 

[Jfarooqpak]

Coralline algee

Coraline Algae are the pink spots that i know. Are the smaller brown spots also Coraline Algae?

 

[AllSignsPointToFish]

I'm no expert, but those look like flatworms to me.

 

[Jfarooqpak]

Looks like flatworms.

Some are parasitic to corals.
Some are harmless.
A good chunk feed on something specific and die without them.
Some can reach plague levels.
Some will multiply and one day die off.

Flat worms are brown in color?

 

[GabeM]

Flat worms are brown in color?

Red/brown/purple

I think they also have zooxanthellae in them so they come in varied colors. Time for flatworm exit!

 

[shred5]

Flat worms are brown in color?

Flat worms can come in many colors with some being really colorful.

Google Search

www.google.com

Mater of fact look at the ling there re allot of pics like yours.

 

[Rossko]

yup i'm going with flat worms as well