RED SEA MAX NANO MULTIPLE ISSUES

[JigsawSRB]

Hello everyone!
I have 20g tank - red sea max nano. Its been running for 10 weeks now. 10 days ago Ive got a nasty ciano outbreak and I had to use chemiclean to get rid of it. It worked removing all ciano, but im left with a brown sand and some places on the rocks. Can someone identify what it could be? Diatoms or dinos?
My nitrates are a bit higher around 15-20. Added de-nitrate media in back sump.

Currently I have 2 small clowns, 2 firefish, 1 six line wrasse in the tank.

I have noticed some nasty stuff around corals once the lights are off as well. They are opening well but once the close there is this algae look like stuff around.

Kindly advise

Please advise.

 

[shakacuz]

can you provide us with pictures under white lighting

 

[JigsawSRB]

 

[TheSheff]

Hello everyone!
I have 20g tank - red sea max nano. Its been running for 10 weeks now. 10 days ago Ive got a nasty ciano outbreak and I had to use chemiclean to get rid of it. It worked removing all ciano, but im left with a brown sand and some places on the rocks. Can someone identify what it could be? Diatoms or dinos?
My nitrates are a bit higher around 15-20. Added de-nitrate media in back sump.

Currently I have 2 small clowns, 2 firefish, 1 six line wrasse in the tank.

I have noticed some nasty stuff around corals once the lights are off as well. They are opening well but once the close there is this algae look like stuff around.

Kindly advise

Please advise.

I would check phosphates as well . Anywhere from .03-.06 is reasonable to have. Any higher could potentially cause or worsen algae issues. In my experience, nitrate can get up to about 20 ppm without causing issues at all.

 

[JigsawSRB]

I would check phosphates as well . Anywhere from .03-.06 is reasonable to have. Any higher could potentially cause or worsen algae issues. In my experience, nitrate can get up to about 20 ppm without causing issues at all.

Phosphates are good. Any idea what this could be and what to do as a next step? Ive started dosing mb7 every day for a week...

 

[xCry0x]

Any idea what this could be and what to do as a next step?

1. Calm down
2. Let your 10 week old tank mature

It looks like you used live rock to set up your tank. That helps. But I'd still expect at least 6 months of patience before things start really looking decent.

You should fully expect waves of algae etc. That means you are moving in the right direction.

Its super hard to be patient, you spend a bunch of money buying a tank and then spend time getting it set up. But the reality is, reef tanks are long term, not short term.

The worst thing you can do is over react to every little thing that changes.

Nitrates and PO4 will increase, algae will grow. Then your tank will start to mature. Assuming you do regular water changes, the nitrates and po4 will start to drop again. Snails/Fish will out consume the algae. Things will clear up.

Or, you can spend the next 6 months frantically pouring bottles of magic potions into your tank to try to counter every normal "issue" that comes up.

 

[JigsawSRB]

Thank you for detailed reply and advices.
There is one more thing that I would like to mention.

2 of my firefish are gone for about week. I have checked the back sump and no signs.

I have: 2 ocellaris clowns, one six line wrasse and 2 firefish, one cleaner shrimp, 2 nassarius snails.

Is it possible that six line was bullying them and they are hiding? I have checked the rock very detailed and no signs of them.
It looks impossible that they were both killed in one day and that the rest of the fish ate them.