Need help identifying brown algae on glass and Sandbed

[a_alvarez]

Reefer 300xl up and running for 7 months. Glass gets completely covered again after just a few days of removing all brown algae. Goni's haven't been extending like they used to and the few zoas I have seem to be losing some color since this began. Parameters are attached in picture. Any info/help would be greatly appreciated. Thanks in advance.

 

[Jake4727]

I would get a more reliable po4 test kit. That could be the issue. I doubt your po4 is actually 0 and if it is I would get it up a bit. Also how long are you running your lights for? Try cutting down % on lights or time they are on.

 

[a_alvarez]

I would get a more reliable po4 test kit. That could be the issue. I doubt your po4 is actually 0 and if it is I would get it up a bit. Also how long are you running your lights for? Try cutting down % on lights or time they are on.

Thanks for the reply. Which brand po4 test kit would you recommend? I'm running 2 Radion xr15 g5 pros at 40% schedule for 9 hours daily.

 

[Jake4727]

Thanks for the reply. Which brand po4 test kit would you recommend? I'm running 2 Radion xr15 g5 pros at 40% schedule for 9 hours daily.

I use Hanna phosphorus, it measures ppb instead of ppm so it is much more accurate. They are a little pricey but so easy to use. Picking up some brightwell aquatics microbactor7, it really helped with with the ugly and got my water quality looking pristine. Here’s my 29

 

[Rmckoy]

I would get a more reliable po4 test kit. That could be the issue. I doubt your po4 is actually 0 and if it is I would get it up a bit. Also how long are you running your lights for? Try cutting down % on lights or time they are on.

I doubt it’s zero
The api kit first range is 0- .025 which is a high range .

 

[a_alvarez]

I use Hanna phosphorus, it measures ppb instead of ppm so it is much more accurate. They are a little pricey but so easy to use. Picking up some brightwell aquatics microbactor7, it really helped with with the ugly and got my water quality looking pristine. Here’s my 29 View attachment 2749751

Beautiful tank! Thanks for the recommendation. Do you dose microbacter7 daily? If, how many ml's daily for an 80 gallon system?

 

[a_alvarez]

I doubt it’s zero
The api kit first range is 0- .025 which is a high range .

Thanks. Definitely going to get a better test kit.

 

[Jake4727]

Beautiful tank! Thanks for the recommendation. Do you dose microbacter7 daily? If, how many ml's daily for an 80 gallon system?

I can’t remember the exact directions but they are very easy. I dose a capful for my 30 gal so I’m assuming yours would be a little less then 3. Directions say to do it for 2 weeks everyday.

 

[Rmckoy]

Beautiful tank! Thanks for the recommendation. Do you dose microbacter7 daily? If, how many ml's daily for an 80 gallon system?

Most times it comes in a small bottle and can be dumped in .

Even to over dose nitrifying bacteria will not damage anything .
the excess bacteria will simply starve not effecting anything .
but these bacteria are great at speeding up the ugly stage as well as lowering nutrients