What are these things??

Hello, once again I have some things in the tank that I don't know about.
First one I think is aiptasia, but not positive:


Next one, I'm not sure. Somebody at my LFS said it's purple algae. But personnel from another LFS said it's actually a bacteria, this rock is in a medium-slow flow area:


Finally, I have what I think it's green algae or green hair algae, it's getting really thick, and only in this one particular rock slow flow:


Thanks for help. I really appreciate advice on what kind of fish/snail/etc I need to deal with them.

- Mag.

 

The purple one is called purple/red algae, but it is actually a bacteria, called cyano bacteria.

What are the nitrates like in your tank?

 

The first could be a Mojave/Majano anemone but I'm not 100% sure
the second is cyano like stated above
and the green is definitely green hair algae

 

First one is a majano anemone. majano anemone - Google Search

2nd is cyano bacteria. Usually due to overfeeding and or not enough flow or from your tank being new.

3rd is hair algae.

Make sure you are using ro/di water for our salt water and top offs. Will help a lot.

 

Sorry about that, ph is at 8, amonia 0, nitrite 0 and nitrate 5.
What will take care of that cyano bacteria?

I googled Mojave anemone but the search came up blank. Did you mean Majano anemone like pgreef mentioned after your post? What will take care of the green hair algae?

I googled Majano anemone and the pictures that came up were not very similar to what I have. Close, but I don't think it is IT. The light is tricky, but this thing has tentacles that aren't rounded at the tip like in the Majano pictures, they look like roots. Their base color is camouflage green, with lighter greyish/greenish stripes around each tentacle. Tentacles have started to multiply a lot since I started spot feeding my corals.

I'll see if I can take a picture of it tomorrow with daylight instead of my t5 lights. They change the color of things.

I bought some aiptasia-x to see if it kills it. I wouldn't mind getting rid of it, it looks harmful and I've seen new "babies" on that same rock and others around.

Thanks for the help guys.

Edit: Typos and rounded an idea

 

Increase the flow in the area where the cyano is growing - add a powerhead. Also, when you do water changes, try to get as much of the cyano out as you can. Cyano is usually caused my excess nutrients (ie overfeeding) and lack of flow.

 

Boost your pH to 8.2 or 8.3. Should help with the cyano along with the other suggestions.
The hair algae you will need to scrape off the rack when it gets that thick. Cut back on your feeding and try to get your nitrates close to zero.

 

Yes, I just haven't dosed pH buffer for a while since I started treating the tank for ick. I'm not sure why my pH is so hard to keep balanced. Of course my tank is only 2.5 months old... it's got to be doing crazy stuff, right?

But seriously.... can't keep my pH at the right level. Only at the beginning of things.

Any advice on that?

 

why cant you stabalize PH?

 

I'm really not sure. I was told, when i oxygen deprived my poor fish having the lids on, that CO2 buildup would cause a drop on pH since that was one of the symptoms they noticed when I posted my readings.
Since then, I had my lids removed, and my powerheads are aiming kind of upwards so the water is very ripply at the top to facilitate oxygenation... I have no idea why I can't stabilize it... maybe because it's a new tank? But I don't know really.

Any ideas on what can be causing this?

By the way, my 30 long will be here on thursday. I'll try to buy the stuff for the sump/fuge and put it all together over the weekend!

- Mag.