Diatoms

jencheung

AC Members
Jan 22, 2007
194
0
0
Cambridge, MA
Three weeks ago I switched out the substrate in my tank from regular gravel to Eco-Complete. The tank had been up and running for a couple of years prior to that. Thankfully I didn't get a mini cycle at all, I suspect because I also planted it when I did the overhaul.

In the last week I've started seeing some brown diatoms on my anubias and a little bit on my glass. I'm dosing Flourish once a week and dosing Excel daily, with a new 65w cf fixture and a 9 hour photo period. I know it's normal to get diatoms with new tanks, is this the same phenomenon even though the only thing new in the tank is the substrate? Thanks!
 
could be the increase in nutrients in the water. diatoms have a photosynthetic component if i remember right
 
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