Algae keeps coming back!

ljg
  • #1
I have a 20 gallon tank and it has
4 black neon tetras
5 neon tetras (2 are babies)
1 pleco

For the past two months, my tank water turns green. I have used ph balance, gotten my water tested, and created extra blocks from the sun. PetSmart told me that it was an algae problem. I have scrubbed my tank from the top to the bottom. Even after about 1 1/2 weeks, it starts turning green again. I do regular water changes and change out the filter every 2 weeks to make sure that it isn't the filter clogged.
What could be happening? Or why?
 
Mick Frost
  • #2
What kind of light do you have, at what wattage? How many hours/day is it on?
 
75g Discus Tank
  • #3
Things you need to do:

STOP THE PH BALANCE(Not to be rude)
Stop changing the filter cartridges(You need them to cycle the tank)
Do a 50% WC weekly
 
ljg
  • Thread Starter
  • #4
The lights have stayed off for the last two months, and we threw out all of my Java Fern.

75g Discus Tank
Not trying to be rude: I use the Ph balance because apparently when I got my water tested, the ph levels were too high so they said to use that for three months. Also, I try to do about a 50- 65% water change weekly, but by the end of the week, the water is cloudy. Could it be my food that is causing cloudy water or something else?
 
Mick Frost
  • #5
Your PH probably was too high for the fish you selected according to whatever book they read. Drip acclimation would have probably worked fine (not that I know what your PH is).
Original post said Algae... Is it actually white, cloudy water?
When life permits, I recommend getting a test kit so that you know what's going on, instead of hearing someone you don't know tell you it's "too high".
 
ljg
  • Thread Starter
  • #6
Ok. Would strips or tube be better? I have heard and read that strips are cheaper but can be inaccurate more often. But tubes are more usable.
 
King o´ Angelfish
  • #7
I would recommend tubes. And also you shouldnt change out your filter sponges, just rinse them in a bucket with tank water. Dont mes swith your pH unless it is INSANELY high. Consistency is more important when it comes to pH. You should be more worried about your cycle. That is most likely causing the algae, the lack of a bacterial colony.
 
Mick Frost
  • #8
Strips aren't cheaper. 25 strips for $20 or 80+ tests for $40. And yes, strips are more prone to inaccuracy (not counting human error). Honestly, though, if you're not comfortable with liquid tests, strips are better than not testing at all.
 
75g Discus Tank
  • #9
Use the API master test kit.


Also, I wouldn’t trust advice from petsmart.

The white cloudiness is a bacterial bloom from when you change out your filter cartridges.

pH balance will make your tank situation worse. Keeping ph stable is a lot better than chasing a “perfect” pH with chemicals.

So stop using pH balance.
 
King o´ Angelfish
  • #10
Use the API master test kit.


Also, I wouldn’t trust advice from petsmart.

The white cloudiness is a bacterial bloom from when you change out your filter cartridges.

pH balance will make your tank situation worse. Keeping ph stable is a lot better than chasing a “perfect” pH with chemicals.

So stop using pH balance.
Agreed.

"Consistency is KEY."
-Joey Mullen (King of DIY)
 
ljg
  • Thread Starter
  • #11
Ok. king O' angelfish . so do I just need to wash out he algae in the filter cartridge. And what is could be causing it? I do use algae wafers for my pleco, but he typically stays in one side of my tank. And avoids the little tablets.
 
King o´ Angelfish
  • #12
Ok. king O' angelfish . so do I just need to wash out he algae in the filter cartridge. And what is could be causing it? I do use algae wafers for my pleco, but he typically stays in one side of my tank. And avoids the little tablets.
What filter do you have? Maybe its not cleaning good enough for the size of your tank. Start doing 50% water changes weekly, and feed only once a day what your fish can eat in 2-3min. Overfiltering is never bad, so if you want you can add another filter like a sponge filter. As for the filter cartridge, just rinse it every other week in a bucket with tank water. Do that and let us know what happens from there on.
 
napa15rt
  • #13
I have a 10 gal planted tank with just 2 bigger plants attached to stones and 2 smaller anubias nana plants attached to lava rock and last some dwarf sagitaria. Tank is 7 Months old. Went through the brown algae and then recently had a staghorn algae problem that I was able to solve with flourish excel. But now that I see that the staghorn is disappearing I notice mainly in one patch there is a green algae problem. I did a gravel vac last night of the affected area and you could not see any green. But 1 day later the green is already back. Any ideas of what this is from ?
 

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A201
  • #14
My guess is that if you let it grow, you'll find it to be green hair algae. Its an indicator of a healthy tank. Nobody has an algae free tank, so regular gravel vacs and glass scraping are a necessity.
 
napa15rt
  • #15
My guess is that if you let it grow, you'll find it to be green hair algae. Its an indicator of a healthy tank. Nobody has an algae free tank, so regular gravel vacs and glass scraping are a necessity.
Just seems odd that it is only one spot. And I didn't know it grew that fast. Made the mistake of buying a acrylic tank so I am hoping it doesn't progress to walls. Don't want to have to scrape. Anything else that might hold it back ?
 
A201
  • #16
Controling Algae growth is all about lighting & nutrients and the ability to adjust one or the other to reach near zero growth. Everyone's set up is different so there is no set recipe for success.
 
Igor95
  • #17
A201
  • #18
If you can pull the algae up from the substrate in one slimey sheet then Igor95 is probably right, Cyanobacteria. If it is Cyanobacteria, I think it has to be manually removed and the nitrate level in your tank needs to be at 20 -30. Maybe one of our aquagardeners can provide better info regarding Cyanobacteria control.
 
smee82
  • #19
I agree 100% cyano. Since your using inert gravel I would just remove the affect gravel clean it then replace.

As for the cyano on the leaves you can stick the end of upur vac over them and rub the cyano off with your fingers. You will have to clean every day for a while to make sure you get rid of all of it.
 
napa15rt
  • #20
Wow how did I get that ? It is kind of slimy. And I notice now that some of the sagitaria looks dark green and slimy. Should I just remove all the sag ?
 
napa15rt
  • #21
Its not a sheet though. Just slimy pieces.
 
smee82
  • #22
It would of probably come with a plant purchase. You don't need to remove the sag just rub the cyano off while syphoning the water. Do it every day when you can see it and you'll end up getting it all. Its not the quickest way to get rid of it but it works and its safe.
 
napa15rt
  • #23
It would of probably come with a plant purchase. You don't need to remove the sag just rub the cyano off while syphoning the water. Do it every day when you can see it and you'll end up getting it all. Its not the quickest way to get rid of it but it works and its safe.
Thanks for all the help. Definitely didnt come with the plants. The plants have been in there for about 3 months now. And the slimy algae problem just started about a week or 2 ago. Just wondering if maybe I had too many root tabs or something causing it. Because it is one small area.
 

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