Newish tank brown stuff???

[Brendan99]

Hello I have a new fluval edge tank it's a 6 gal and it's been up for about 2 weeks now I have 3 female betta's in it and lots of beautiful things in it. Today I noticed some brown stuff with little green fuzzy's starting to cover some of my Decore here is a pic of my tank and the brown stuff I'm talking about. I'm wondering if I shod be worried no is this normal if u don't have snails or an alge eater ???? please help thanks

 

[fort384]

They are diatoms. It is relatively common with new tank setups. There are a few things that can help limit them: Do not over feed. Fish food has PO4 in it, which is a big contributor to diatoms. Do PWCs regularly. This keeps the water clean and removes excess nutrients that diatoms feed on.

I am more concerned about your water parameters, being that you have 3 fish in a tank that is only 2 weeks old. Did you cycle the tank prior to adding fish? What are your ammonia, nitrite, and nitrate levels?

How often are you performing partial water changes, and how much at a time?

 

[Brendan99]

Well I didn't change the water yet I am doing one tomorrow and will be doing it regularly from now on my ammonia is ok but I am still in my cycle cuz my nitrite and nitrate is hi

 

[fort384]

What is high?

Consider doing a pwc of at least 50% tonight, for the sake of your fish. Nitrite in any amount is toxic to your bettas.

 

[ejaramillo01]

+1 for the 50% PWC

As far As I know, Nitrites are even more toxic for the fish than ammonia.