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I had a diatom bloom, went away. Now this is starting on the rocks.Looks like a diatom bloom first and foremost. Coraline takes a few months of favorable conditions before you start to see spots on the glass and what not as mentioned above.
Can it be blown off the rocks with accute targeted flow? Were the rocks 100% white before? I see diatoms on the photo. The goldish looking stuff.I had a diatom bloom, went away. Now this is starting on the rocks.
Yeah I see some brown but also purple. The rocks were dry.Can it be blown off the rocks with accute targeted flow? Were the rocks 100% white before? I see diatoms on the photo. The goldish looking stuff.
It looks like coralline to me. My coralline algae looked the same way when it began to grow.
I suggest this same thing to people too because it’s how I got some in my tank. SNAILSOne thing you can always do to add coralline into the tank is find some old Snail or hermits shells with coralline on them and leave them on the rocks. This is a great and easy way to jumpstart the growth in your tank. Its also really cheap. I did this in my tank, its still new but it definitely has helped
A second alternative is you can have a friend or someone the local first store, just scrap some off their tank walls. Just drop it into the tank.
I got zero on my plastic/glass but nice growth on my rocksVery hard to tell from photos, but usually you will almost always see corralline develop on glass, powerhead, overflow, etc. before you see if colonizing heavily on rocks, especially if using new/dry rock. If you are getting growth on these areas, then it is likely growing on your rock as well.
looks like it to me i see more purple forming on my rock