losing my corals /not developing

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have been running my 300 ltr tank for over a year now, still suffer a little green discoloration on my live rock, my main issue is ,i keep purchasing frags,sps and lps, but always seem to die off, my temps are 24,5  ph 8.2 nh3 @ 000.1 nh4 @ 12.64. my tank is 800 by 800 my par readings lower 130, middle @294 and at top 555. i run mostly blue light at 90% and white light at 30%, my lighting system is a v2 ilumenair 1200, my fish being clowns and  another breed have been okay , been there best part of a year, i run and check my seneye most days,  , i do have one more thing to mention, i have a lot of brown type plants which came with live rock and did not see at time of purchase, im told they could be a problem, so i try to remove but they keep retracting back into rocks on approach, 

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Reply #1

The plants that you mention could be aptasia. Can be a nightmare to get rid off and spread quite quickly .
There are fish out there and some crabs and hermits eat them sometimes ,
Dave
 8D

marine_newbie

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Reply #2

Do you have photos.
Btw NH4 is ammonia, I assume you meant NO4 (nitrates). If ammonia was that high your fish would most likely not survive.

Aiptasia is a pain. I am battling it at the moment. Options are
Berghia nudibranch
Peppermint shrimp
Copperband fish
Filefish
Aiptasia X or other chemicals

I would rank them in that order, but do not have much experience. I use aiptasia X but if you don’t inject it right it doesn’t kill them but rather induces more... have 2 peppermint but they are still hiding after I introduced them about 4 wks ago now...
The fish commonly also take a liking to nipping corals and the nudibranch are also prey for wrasse and shrimp...


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mightyhatter

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Reply #3

Doea sound like aiptaisa

As far as your corals are concerned there are a couple of things to consider.
- if you are wanting SPS your nitrates are probably a little high (you can definitely keep SPS with elevated nitrate but is more challenging and is worth considering if new introductions are struggling)
- for LPS and SPS your Alk, Mag and Calc levels are important as they need them for their skeletons etc. If these are well off then you will really struggle (Alk crashed in my tank recently and i lost 4 or 5 SPS colonies)

ajm83

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Reply #4

have been running my 300 ltr tank for over a year now, still suffer a little green discoloration on my live rock, my main issue is ,i keep purchasing frags,sps and lps, but always seem to die off, my temps are 24,5  ph 8.2 nh3 @ 000.1 nh4 @ 12.64. my tank is 800 by 800 my par readings lower 130, middle @294 and at top 555. i run mostly blue light at 90% and white light at 30%, my lighting system is a v2 ilumenair 1200, my fish being clowns and  another breed have been okay , been there best part of a year, i run and check my seneye most days,  , i do have one more thing to mention, i have a lot of brown type plants which came with live rock and did not see at time of purchase, im told they could be a problem, so i try to remove but they keep retracting back into rocks on approach, 

Hi

What happens to the corals (how do they die - do they bleach or does the flesh fall off etc)?

What are your readings for nitrate, phosphate, alk, cal and mag?

Your PAR is fairly high so i assume you are starting the frags low in the tank?
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