Im new to fish keeping and wondering if i couod get some advice

Monkee91

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Hi guys, so I recently set up my first tank, cycled it for 2 weeks and now have fish in for the past 3 weeks.

Tonight I noticed these white powdery looking marks on my glass, so I cleaned them off and it's back again.

I do weekly 25% water changes with tap safe.
Cant really get a better pic than that because of focus. Tia
 

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Did you test the water for ammonia, nitrate, nitrite etc with an API kit or something similar ? I failed to do so on my very first 5 G tank & a few minnows died. I’ve done 75% water changes twice a day a few times when problems developed. I’d continue to take a clean washcloth or magic eraser sponge & wipe the glass down. Or whatever you’re using.
 
Did you test the water for ammonia, nitrate, nitrite etc with an API kit or something similar ? I failed to do so on my very first 5 G tank & a few minnows died.
I use a water testing strip and everything is fine according to that. My fish seem happy and healthy but it looks like chalk on the glass

Cheers
 
Hi guys, so I recently set up my first tank, cycled it for 2 weeks and now have fish in for the past 3 weeks.

Tonight I noticed these white powdery looking marks on my glass, so I cleaned them off and it's back again.

I do weekly 25% water changes with tap safe.
Cant really get a better pic than that because of focus. Tia
I can't comment much (being a bit of a newbie myself) except 2 weeks seems fast for a cycle. It would help to tell us:

Tank size
Fish species and count
Latest water parameters

Also, try holding a index card (or any flat object) next to the spot against the tank to focus. Point and hold on the card image to focus, this works in iPhones.
 
I have 8 tanks running now (first in 7/21) & have never seen what you describe. Sure an experienced person here will have some ideas soon.
 
I can't comment much (being a bit of a newbie myself) except 2 weeks seems fast for a cycle. It would help to tell us:

Tank size
Fish species and count
Latest water parameters

Also, try holding a index card (or any flat object) next to the spot against the tank to focus. Point and hold on the card image to focus, this works in iPhones.
Like that focusing idea. In times long gone by, people used matches or flashlights to help focus.
 
Mine will never go that low. 5’s in the tap water. Not a problem.
Mine is zero, which is odd because our water does not come from an aquifer. My tank was up to 20ish Nitrate and the algae was getting out of hand, but some semi-aggressive WCs are pulling it down. Our city (Macon GA, USA) often wins the 'best tasting water' award, that may be part of the reason. I don't understand locals who buy bottled, IMO the tap water tastes better.
 
Hi @Monkee91

I see you are using strips to test the water - do they include an ammonia test? Most do not, and this is the first thing to go up in a tank which is not cycled.
The brown is diatoms which are common in new tanks. They grow when there is silicate and/or ammonia in the water, which is why I ask if your test strips include ammonia.

Can I ask how you cycled the tank? Did you add ammonia (a fishless cycle)?


This explains what cycling is and is a basic guide to the various methods with links for more detail.
 
Hi @Monkee91

I see you are using strips to test the water - do they include an ammonia test? Most do not, and this is the first thing to go up in a tank which is not cycled.
The brown is diatoms which are common in new tanks. They grow when there is silicate and/or ammonia in the water, which is why I ask if your test strips include ammonia.

Can I ask how you cycled the tank? Did you add ammonia (a fishless cycle)?


This explains what cycling is and is a basic guide to the various methods with links for more detail.
Isn’t OP reporting while powdery streaks, not brownish diatoms? Or can diatoms present as he describes?
 
Oooops :blush:

I'd not been up long when I posted that and my brain wasn't in gear yet. I missed that it was a different member who posted the image of the brown algae :blink:
My apologies, @Monkee91
 
Oooops :blush:

I'd not been up long when I posted that and my brain wasn't in gear yet. I missed that it was a different member who posted the image of the brown algae :blink:
My apologies, @Monkee91
My bad, I should have made explicitly clear that the pic was an example of how to move the focal plane near the algae subject rather than the actual OP algae.
 

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