My marimos have turned an olive green.

ggavin

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Hello, I have had my marimos for a few months now and I noticed they were starting to change from a forest green to an olive green, which makes me worried that I’m doing something wrong. I really started to notice the difference when I got two new marimos (the left most glass). I’m worried about my other marimos and want to help them get back to a darker green. I am unsure if it is lighting, temperature or both. I do change their water and “bathe” the marimos once a week.

They usually sit on my desk completely out of direct sunlight. My room isn’t the brightest though. Also, since it’s starting to get warmer, I feel like I should be more active about keeping their water cooler. Please help, I’d like them all to be healthy and all be forest green instead of this olive green, and I really don’t know why they have turned an olive green.

Here are pictures of my marimos, I hope it can help you see the difference in color between the ones in the left most glass and the rest of them.
 

oOBlueOo

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Do they get any fertilizer? It's possibly a nutrient deficiency. That's the only thing I can think of.

Usually, in the fish tank, fish provide enough nutrients IME. But since yours aren't with fish, maybe the marimos are hungry.


Sorry I can't be more help.
 

jenema

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Looks like a start of a co2 deficiency, they will turn white if they are co2 deficient.

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ggavin

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So what should I get to help get rid of their co2 deficiency?
 

Dolfan

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I think it could be lack of light. They don't need much light, but with no sunlight from a window and no light from an overhead fixture they will probably suffer a bit. They will still survive I think, just not be the bright green color you want.
 
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ggavin

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Thanks, I have been trying to get them in the sun more. I'm also making sure the water stays cool. And I got some prime and API just to see if that would help a little.
 

aliray

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Do ou have fish in another tank that when you do a water change in your tank you could add some to the tank for fertilizer? Mine are in fish tanks with led lights but lots of poopy fish like a plecco to add fertilzer, and they stay the lovely dark green. I think too much direct sun will make them pale out as well. Alison
 

Dolfan

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Yea they need something for some nutrients.
 

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