Need help ID'ing multiple items

Silara79 · Mar 9, 2021

Hello all,

I am new to the hobby as of last year June/July. I had a 20gallon and upgraded to 75 gallon in February.
I kept the live rock but added new live sand and new live dry rock, added Dr.Tims Bacteria and moved my pulsing xenia (bought on rock), mushroom coral (bought on rock), and duncan from the old tank to the new. As well as my 2 Clownfish and 2 Benggai cardinal.

I did make a mistake as I bought beg. Feb a purple Dottyback and end of Feb he wasn't eating for a day and my serpent starfish ate him. Same thing happened to one Benggai.

I moved the clown to my old 20g and they are doing fine, I added some meds (thanks for the info). I assume it was Brooklynella as it did kill the 2nd Benggai, I wasn't able to get him out. I will have the DT without fish for 76 days?, if I read it correctly.

Now to my questions as to what those things in my tank are (I couldn't find information on some) and if I should do anything about them.

1. What is this little thing. I saw more on the rocks. Not too many.

2. What is this green grass looking thing? And is the one below Aiptasia?

3. I have this fuzzy stuff(algae?) on the rocks and sand.

4. This hairy looking stuff is on the sand and glass.

5. This is on the duncan coral. Is it harming the coral? Why is the base of the duncan shrinking/going away?

6. and last: Are these flatworms?

One at the top of the picture and another at the bottom.

I know it's a lot and appreciate all the help I can get.

Reefer1978 · Mar 9, 2021

1. pod
2. hair algae
3. I'd say algae, part of maturing a tank
4. I'd say algae, part of maturing a tank
5. vermetid snail
6. yes - flatworms.

JosephM · Mar 9, 2021

Silara79 said:
Hello all,

I am new to the hobby as of last year June/July. I had a 20gallon and upgraded to 75 gallon in February.
I kept the live rock but added new live sand and new live dry rock, added Dr.Tims Bacteria and moved my pulsing xenia (bought on rock), mushroom coral (bought on rock), and duncan from the old tank to the new. As well as my 2 Clownfish and 2 Benggai cardinal.

I did make a mistake as I bought beg. Feb a purple Dottyback and end of Feb he wasn't eating for a day and my serpent starfish ate him. Same thing happened to one Benggai.

I moved the clown to my old 20g and they are doing fine, I added some meds (thanks for the info). I assume it was Brooklynella as it did kill the 2nd Benggai, I wasn't able to get him out. I will have the DT without fish for 76 days?, if I read it correctly.

Now to my questions as to what those things in my tank are (I couldn't find information on some) and if I should do anything about them.

1. What is this little thing. I saw more on the rocks. Not too many.

2. What is this green grass looking thing? And is the one below Aiptasia?

3. I have this fuzzy stuff(algae?) on the rocks and sand.

4. This hairy looking stuff is on the sand and glass.

5. This is on the duncan coral. Is it harming the coral? Why is the base of the duncan shrinking/going away?

6. and last: Are these flatworms?

One at the top of the picture and another at the bottom.

I know it's a lot and appreciate all the help I can get.

1. Amphipod, looks like a good one
2. Some sort of algae, can’t tell which type. Bottom looks like a nice cluster of feather dusters
3. Could be the start of dinos or just bubbles getting trapped in the fuzzy stuff. I don’t know what the fuzzy stuff is
4. That’s what my tank looked like when my GHA was dying
5. Looks like a spinoid worm with the two appendages but could be vermatid snail
6. Sure is a flatworm