Tank uglies???

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Hi guys

I'm hoping someone can help as I'm new to saltwater tanks and starting to panic.

So I have had my tank setup for about 5 weeks with both live rock and live sand. Cycled fairly quick no problems.

I do two 15% wc's a week and all my test readings are fine. Over the past few days I have noticed that when I put my blue light on my live rock in certain areas is red. I really don't know if this is some sort of algea or bacteria but being new to this you know everything that looks strange makes you panic.

I have noticed that when the normal light is on, on some of my other live rock there are purple specs, could this be connected???

I have noticed also that my sand is looking abit brown and certain rocks to, what is going on  :S :S :S

My parameters are:

Ammonia 0
Nitrite 0
Nitrate 5
Salt 1.025
Phospate 0
Kh 10
Calcium 400
Ph 8.2

Fish:

2 x small clowns
2 x turbo snails
2 x nasurass snails

I have attached some pics to show you, both in the normal tank light and blue light 

Thank you for your


ajm83

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Reply #1

Hello @Reefmadness welcome to ReefBase  8D

Nothing looks majorly wrong there, no need to panic.


The rusty coloured brown stuff is most likely diatoms, if so, they will go over time as silicates get exhausted (assuming your source water is good quality!)

The purple patches are coralline algae.  Most people like this, somebody even asked to buy some of mine.  It can be a nuisance if it gets on your glass, but other than that it's no problem. In fact it can be good as it seems to discourage other algae from growing.

Can't see anything red in your pics, so not sure what that is.

Thanks:


PurpleShrimp

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Reply #2

All looks good to my novice eye @Reefmadness !
My tank has been up and running for two weeks and I got the brownish sand stuff - diatoms. I have w bit of green algae on some of the rock and plenty of purple appearing, so I’m happy!
Are you running any phosphate remover?

Thanks:


Reefmadness

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Reply #3

Hello @Reefmadness welcome to ReefBase  8D

Nothing looks majorly wrong there, no need to panic.


The rusty coloured brown stuff is most likely diatoms, if so, they will go over time as silicates get exhausted (assuming your source water is good quality!)

The purple patches are coralline algae.  Most people like this, somebody even asked to buy some of mine.  It can be a nuisance if it gets on your glass, but other than that it's no problem. In fact it can be good as it seems to discourage other algae from growing.

Can't see anything red in your pics, so not sure what that is.

Hi ajm83

Thank you for your reply and for settling my mind, as I go though the stages what action should I take or should I just let it sort itself out???

Reefmadness

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Reply #4

All looks good to my novice eye @Reefmadness !
My tank has been up and running for two weeks and I got the brownish sand stuff - diatoms. I have w bit of green algae on some of the rock and plenty of purple appearing, so I’m happy!
Are you running any phosphate remover?

Hi PurpleShrimp

Thank you for your reply, yes I run seachem phosgard and I have recently been adding microbelift special blend for my nitrates when I started adding it they were 20 and after a week and a half they have dropped to 5, it stinks the house out but it's good stuff

ajm83

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Reply #5

I wouldn't do anything yet.
What test kit are you using for phosphates?



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Reefmadness

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Reply #6

I'm using api tank and reef kits, now I know people say they are useless but I read about the tubes being defective and the water line not being correct and if you fill them with a 5ml syringe your reading will be correct.

My lfs argued that this was rubbish so I brought my kits down used the syringe and my results matched his, he couldn't believe it

Reefmadness

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Reply #7

I wouldn't do anything yet.
What test kit are you using for phosphates?



Sent from my Mi A1 using Tapatalk
I'm using api tank and reef kits, now I know people say they are useless but I read about the tubes being defective and the water line not being correct and if you fill them with a 5ml syringe your reading will be correct.

My lfs argued that this was rubbish so I brought my kits down used the syringe and my results matched his, he couldn't believe it

ajm83

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Reply #8

I'm using api tank and reef kits, now I know people say they are useless but I read about the tubes being defective and the water line not being correct and if you fill them with a 5ml syringe your reading will be correct.

My lfs argued that this was rubbish so I brought my kits down used the syringe and my results matched his, he couldn't believe it

No problem.
Reason I asked is that if you were using a high sensitivity test such as a Hanna ULR, RedSea Phos Pro, or Elos HR and had a zero reading, you are likely to get problems down the line.
However, a zero result on an API kit is unlikely to really be zero, which is fine.  You want it low, but not too low. 👍

Thanks:


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