I have a blue mushroom that I got about 3 months ago that isnt doing so well. When I first got it, the guy at the fish store said place it lower in my tank with low light and low flow. I have a 90 gallon with 2x250w MH. I placed the mushroom close to the bottom of the tank on a rock ledge and it did awesome for about a month and a half at one time it was opening to about 2.5 inches in diameter. Then one day my snail knocked it off its ledge the mushroom got ****ed and started to float around and look for a new home. Every since then it has never looked as good or opened as much its about in the same place and attached to a rock but it wont open fully about and inch in diameter and its color isnt as good? Did I do something wrong or is it just being a mushroom?