Extremely hard green algae

[20gallonreefer]

My 450 gallon tank has been set up since march and I only really have been having one problem with it and that algae. Now this is not your every day algae. The tank is doing great the sps is growing really fast and the rocks have a very small layer of algae but thats every tank. Just a little not even noticeable unless you look close. The big problem is that if I don't wipe the glass every day it grows this green layer that is so hard it wont even come off just by scraping it. I have to get a bathing suit on with a mask and snorkel and apply all my force to the scraper for it to come off. It really gets me angry because i can't enjoy the tank because it grows literally in 2 days without scraping and the mag float scratches the acrylic even with no sand or rocks in it. It really sucks. I use a piece of cloth in between now but it's too soft to do anything so really my main way of cleaning the glass is scraping and I cant be getting inside this tank every day, my schedule is to busy and it's like going swimming. It is not coraline algae either its just like the green film any tank gets on the glass but this just freezes and blocks the view of the beautiful tank.

 

[al0ha]

yeah i get that too....but i have a solana so its easy to scrape. i use a razor blade and just scrape it right off

 

[jackson6745]

On my previous tanks I had hard green algae on glass only during a period when my phosphate was high (using a hanna meter). When the levels were below .07ppm I would only get a brown film and it would turn to purple coraline in the areas that I didn't not constantly clean. Test your phosphate using a hanna colorimeter

 

[20gallonreefer]

Now as I am looking at it again it is sort of a dark green brownish color. And I will never use that stupid hanna meter again lol. The thing gives me a different reading every time and never gives me anything below 1ppm. I know its false because the tank would be full of algae right now. My corals are doing great and I only have this stuff on the walls. I'm surprised yours even works. There was a thread on RC where just about everyone who had one didn't work properly and they wouldn't do anything about it.

On my previous tanks I had hard green algae on glass only during a period when my phosphate was high (using a hanna meter). When the levels were below .07ppm I would only get a brown film and it would turn to purple coraline in the areas that I didn't not constantly clean. Test your phosphate using a hanna colorimeter

 

[20gallonreefer]

I am using a plastic razor because the tank is acrylic.

yeah i get that too....but i have a solana so its easy to scrape. i use a razor blade and just scrape it right off

 

[ducati335i]

The Hanna works great on mine.

 

[jackson6745]

Now as I am looking at it again it is sort of a dark green brownish color. And I will never use that stupid hanna meter again lol. The thing gives me a different reading every time and never gives me anything below 1ppm. I know its false because the tank would be full of algae right now. My corals are doing great and I only have this stuff on the walls. I'm surprised yours even works. There was a thread on RC where just about everyone who had one didn't work properly and they wouldn't do anything about it.

I think you are talking about the hanna phosphate checker. I never used one of those. 2 totally different things. Green algae on glass usually is a phosphate problem.

 

[20gallonreefer]

Yes hanna phosphate checker, sorry I thought thats what you were talking about. I put in a pound of GFO last night so I'll see if it does anything over the course of the next few days.

I think you are talking about the hanna phosphate checker. I never used one of those. 2 totally different things. Green algae on glass usually is a phosphate problem.