Algae control in flowerhorn tank

  • We are currently upgrading MFK. thanks! -neo

Dieboldly

Jack Dempsey
MFK Member
Apr 24, 2015
574
63
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Buena Park, CA
Hey guys, what is this algae and how can I control it better? I do water changes 1-2x a week! I always scrap this stuff off too.

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How much water are you changing?
 
If the other water values are good and you don't want to keep the tank dark you can use a phosphate absorbing media. I use the pelitized type from Seacem. Be sure to wash it well before use and replace it when the overgrowth starts to show up again. It is not an exchange resin it does not release when exhausted and it cannot be recharged. I don't bother to test for phosphate in fresh water fish only systems as most over the counter phosphate test kits are not accurate enough to read the low levels we need to keep in order to control plant growth via nutrient restriction. You might have to change out the first charge in a week just to pull out the built up and sequestered phosphate in the system. Once you get the growth under control you likely need far less to maintain a clean tank.
Some food makers use phosphate compounds to preserve the food. Check the labels. Some water supplies add phosphate based compounds to control metal erosion. You can fin level change your water 3X a day and still have overgrowth
 
I also think it might be that the lights are on too long, you may want to get a timer, and have them on for a few hours in the morning, then off for 8 hours, and back on after you get home from work.
 
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