Anemone closed up for a while

[msilva11833]

Ok so my rainbow bubble tip has been closed for weeks now and every now and then he barely opens his mouth. The tentacles have been looking a little small. At first I thought it was my water but everything was normal. Then I found a bunch of tube snails (the ones that cast nets and disturb coral) on my main rock. I pulled it out and crushed them all and made sure to get them all off. I got it ~1 1/2 months ago and when I introduced it it was doing fine. It’s been one week since I took out all the tube snails and the last time I did a water change was Thursday. I have 1 nissarius snail, 1 Halloween hermit, 2 blue hermits, 1 tuxedo urchin, 2 clowns, 1 court jester goby, and 1 6-line wrasse, all the coral I currently have are doing great. I have a 20 gallon system and it’s been up for ~3 1/2 months (I didn’t know that I had to wait 6 months when I got him). I haven’t had any big swings and it hasn’t lost color. Please help q-q

 

[msilva11833]

Here are the pictures