- Joined
- May 12, 2026
- Messages
- 18
- Reaction score
- 8
- Location
- calgary
- What state or country do you live in
- Canada
Hi all!!
So approximately 1.5 months ago my partner and I purchased a firework clove coral from a LFS and we quickly noticed a discosoma hitchhiker! Super cool!
Unfortunately throughout the past several weeks the firework clove has been slowly diminishing and we’re seeing a new growth, kind of a red/rust mat ? It looks like it has polyps when looking up close but I’m very unsure as to what it is and why its demolishing my firework clove.
I have attached photos, albeit not the most stellar photos as it’s location in the tank makes it very challenging to get a quality photo.
I’ve read about something called sarcothelia but from photos I’ve seen it tends to appear blue rather than brown/red.
Is it just weird algae ? Please help! If better photos are needed I can try and get more but these are the best I was able to get after trying for about half an hour :/
Thanks all, very much appreciate all the help I receive :)

So approximately 1.5 months ago my partner and I purchased a firework clove coral from a LFS and we quickly noticed a discosoma hitchhiker! Super cool!
Unfortunately throughout the past several weeks the firework clove has been slowly diminishing and we’re seeing a new growth, kind of a red/rust mat ? It looks like it has polyps when looking up close but I’m very unsure as to what it is and why its demolishing my firework clove.
I have attached photos, albeit not the most stellar photos as it’s location in the tank makes it very challenging to get a quality photo.
I’ve read about something called sarcothelia but from photos I’ve seen it tends to appear blue rather than brown/red.
Is it just weird algae ? Please help! If better photos are needed I can try and get more but these are the best I was able to get after trying for about half an hour :/
Thanks all, very much appreciate all the help I receive :)

