Having Issues with Corals

[al vance]

Hello;
I have a 20 Gal Reef Tank.
2X Black Clown Fish. 3 years
3X Nass Snails
A few different types of coral

75 watts t5 2x blue and 1x natural
2 power heads and a uv sterlizer

I put in a nice rock with different colour zoos and they are almost all gone

Also a Bubble coral I have had for almost 3 years is slowing dying for the last 6 months. Will not feed (The clowns have live in the whole time)

I have also noticed a steady growth in what looks like worms.

I also have something that looks like aptasia and a couple other things I am not sure of.

The Mushroom and cabbage corals are doing fine

I will post pics if anyone has any ideas what is growing or happening to my corals

 

[al vance]

Sorry hopefully these picks work

http://flic.kr/p/dLeEAr

http://flic.kr/p/dLkcMo

http://flic.kr/p/dLeRbB

http://flic.kr/p/dLePAP

http://flic.kr/p/dLkiL5

http://flic.kr/p/dLk9TN

 

[SushiGirl]

2nd pic looks like hydroids.
I do see an aiptasia in the 3rd pic, if the clowns are living in the bubble coral, they may be harassing it to death. If it was fine for years with them in it, maybe water chemistry is off (you didn't list any parameters) & the harassment from the clowns won't allow it to recover.
Definitely aiptasia in the 4th pic.
Harmless feather dusters in the 5th pic.
More worms = overfeeding.

 

[al vance]

what are hydroids?
will aiptasia hurt corals?
Best way to get rid of them.

 

[SushiGirl]

Hydroids.
Yes, aiptasia & hydroids can both sting corals.
Lots of threads here on ways to get rid of aiptasia.

 

[al vance]

thank you for your response.
I am very new to this forum process.
Not easily navigated by a rookie.

 

[trinidiver]

I could be wrong but it seems as though your corals are stretching for the light. How old are your bulbs and when was the last time they were both changed.
How often do you do water changes and what are your Alk, Cal, Mag and other parameter readings

 

[al vance]

small 2 gallon water changes bi-weekly not exact on other perameters.
1.021 specific gravity
80 temp
0 nitrate and nitrite
Will new kits for Alk, Cal, Mag, PH

 

[captjab]

If your hydrometer is correct, I'd suggest slowly raising your salinity to 1.025 or even 1.026. IME 1.021 wouldn't be enough for corals to thrive.

 

[RA]

I could be wrong but it seems as though your corals are stretching for the light. How old are your bulbs and when was the last time they were both changed.
How often do you do water changes and what are your Alk, Cal, Mag and other parameter readings

+1 It looks like you don't have enough light!!

 

[al vance]

I am sure on specific gravity. I will slowly try to get it to rise to 1.025
I use a refractometer and check calabration often.
I am going to try another t5 25 watt ballast and change bulbs on the one I have.
Hopefully it works.

 

[trinidiver]

small 2 gallon water changes bi-weekly not exact on other perameters.
1.021 specific gravity
80 temp
0 nitrate and nitrite
Will new kits for Alk, Cal, Mag, PH

There is one of your major problems................ when you get that to 1.025-26, then you can tackle the lighting issue. One step at a time

 

[al vance]

just got 2 new bulbs and am looking at a new ballast.
Bought new test kit, I think mine were little too old.
Ph 8.0
Nitrite 0
Nitrate 20ppm
Cal 500mg/l
LFS should have a mag, alk tests in by end of the week.
What do you think?

 

[YoungREEFA]

Your nitrates are out the wazoo!! And calc is lil high , but other wise fine, whats your alc?

 

[al vance]

what should nitatres be? 0