Your Marimo looks pretty bad. How long have u bought? Which seller? 

I kept mine for almost 2 months, the colour still very green since the day I got it. Yours look very Brown, like sick and going to die. Pity the Marimo.

try removing it, rub lightly and rinse under cool running water, store in the fridge for a short period of time, hopefully it will restores back to how it look like previously. fingers crossed

Huhh? You only get it for one week already become like that?? How come?? I don't think is delivery problem larr. All my marimos also use poslaju what... Summore send to Sarawak so far and I collect after 4 days of delivery lehh.. all my marimos still green green...  So impossible is due to heat lor..

Mind if I ask, is it u buy from a seller call cute miao? Because my friend COD with this seller also have such problem with her marimo lehhh... Take home two three days already become Brown Brown , worse than yours, so my friend say this seller marimo is fake and poor quality........... Waste money only!!

Wa..... Nice to meet someone from hornbill land here!

Yes, I bought all my marimos from leeyung after survey this thread here. Everyone says leeyung marimo has the best quality and great service, so I also buy from this seller.
I think I saw people comment here before that leeyung is the only one selling real Japan marimo... So that is why I think leeyung's marimo have better quality than other seller's fake ones gua... Better buy real than fake one larr.. so I am a happy owner now

its in the post office..................