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  #41  
Old 05-31-2020, 08:12 PM
LifeIsGreat LifeIsGreat is offline
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This guy will never starve!
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  #42  
Old 05-31-2020, 08:38 PM
Ryancw Ryancw is offline
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it looks like your play sand is starting to cause diatom issues despite you doing a little test area. the silica in that is going to become a problem. i would remove it all, followed by a few larger water changes this week while you still have a chance.

if you are going to use sand in the aquarium hobby make sure it is reef friendly. while it may seem in the beginning stages like its going to work fine, problems like leaching happen over time and once it takes over the tank there will be no recovering from it. there is literally a million resources online that suggest silica based sand is not for use in the aquarium hobby.
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  #43  
Old 05-31-2020, 09:08 PM
LifeIsGreat LifeIsGreat is offline
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Hard to tell from the pics, but those aren't diatoms, it is the same cyano and hair algae mix as what's on the rocks, and that was there before the sand was put in. I've read read numerous sources and studies on all sides of the silica/aragonite/calcium carbonate fence, all saying one is better than the other. Some people even dose silica for its benefits. From what I've read, the silica sand is unable to dissolve at the PH levels of sea water, and therefor cannot become a food source for diatoms. Also, my glass is silica based so unless I go acrylic there will always be silica in my tank. As it stands, the fish are perfectly healthy. We'll see how it goes in the long term, I'll post the results of whatever happens.
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  #44  
Old 06-18-2020, 02:36 PM
LifeIsGreat LifeIsGreat is offline
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Here is a photo comparison of the tank the day I added the 6500k lights and one month after adding the 6500k lights. I'm not sure if it is a result of the lighting or just the natural progression of the ecosystem, but the red cyano has all but disappeared in favour of the green cyano. The hair algae population has reduced greatly, particularly on the back glass; this I attribute to aging of the system and reduction of nutrients. There is a dramatic difference in the amount of bubbles in the water after the 6500k's turn on: there are very few bubbles when they are off and the tank is almost like a snow globe when they are on.

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