Brown isotopes?

[Tlc]

How to get rid of these?

 

[Crepe]

...Brown..Isotopes? What exactly are they?

 

[Tlc]

Brown algae or brown diatoms

 

[Tlc]

Anyone?

 

[mr_X]

water changes with good source water (R.O.D.I.) and cutting back on feeding. it's a nutrient issue.

http://saltaquarium.about.com/cs/algaecontrol/a/aa071103.htm

 

[Tlc]

Thank you! Yes i do use RODI water and change anywhere from 10-20% a week! Last week I changed 50% and did another 10% today Is it possible this happened because of the latest spike of ammonia from die off on my rocks? My nitrate reading is 0

 

[mr_X]

yes, after cycles, diatom blooms are very common due to the excess nutrients produced.

 

[Tlc]

Are these them ? These were white rocks

 

[melosu58]

Looks like it to me. Brown diatoms