20 Gallon Tank Orange-brown spots on my ornaments

Caterpie

Hello!
I saw some “orange-brown” spots on the ornaments in my tank, Could it be diatoms? I don’t know exactly what it is, how it happened and how to get ride if it (I’m in USA in case somebody recommends a product) Can somebody help me please? My tank is like 3 weeks old and I have 0 ammonia, 0 nitritres and 5 nitrates. I keep the led light on 8 hours per day, I put seachem flourish once a week for my plants (1,7 ml for 20 gallons) and I haven’t done water change since 1 and half week ago in order to let the TSS+ work. Temperature 80F. Thank you!
 

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Dobert

if in few days your aquarium will look like below then it's start of brown algae. Pretty normal in freshly setup fish tanks


brown-algae.jpg
 
Upvote 0

Ouse

Hi. Not sure why you’re panicking so much. Diatoms are harmless and are most often caused by high silica levels present in newly cycled tanks. They’ll disappear eventually. Your tank sounds cycled provided the readings. With water changes the diatoms should disappear over time.
(I’m in USA in case somebody recommends a product)
There’s absolutely no need to use products to kill diatoms. In the US using products for everything is alarmingly overrated. I often find many hobbyists in the US have chests full of tea tree oil based meds, pH altering products and snail killer, all of which are bad and I could ramble on about why this is. There are better, safer and natural alternatives to tacking problems than using products. Despite this, many hobbyists resort to using products and I can only discourage this.

You don’t need to do anything about it and you certainly don’t need to use products to kill the diatoms; that could only end tragically.
 
Upvote 0

Caterpie

Hi. Not sure why you’re panicking so much. Diatoms are harmless and are most often caused by high silica levels present in newly cycled tanks. They’ll disappear eventually. Your tank sounds cycled provided the readings. With water changes the diatoms should disappear over time.

There’s absolutely no need to use products to kill diatoms. In the US using products for everything is alarmingly overrated. I often find many hobbyists in the US have chests full of tea tree oil based meds, pH altering products and snail killer, all of which are bad and I could ramble on about why this is. There are better, safer and natural alternatives to tacking problems than using products. Despite this, many hobbyists resort to using products and I can only discourage this.

You don’t need to do anything about it and you certainly don’t need to use products to kill the diatoms; that could only end tragically.
Alright guys, thank you! I didn’t know what this was, but now I know it’s ok :) thnx
 
Upvote 0

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