Aiptasia ?
 

for some reason i got lots of baby Aiptasia in my clean tank
everything is zero in the tank ph 8.2
water temp 78 salinity 1.24
but what is the reason i got this tiny Aiptasias in my tank galsses ?

same as this pic

http://i1053.photobucket.com/albums/...pse6d87f06.jpg

Getting pests like Aiptasia has nothing to do with your water chemistry, their their there, they will reproduce until you kill them all off somehow.

But on that note, that doesn't look like Aiptasia.

Google Hydroid Jellyfish, then go to images.

http://www.wetwebmedia.com/jellyidfaqs.htm

:thumb:
They are not aiptasia simple hydroids for your smaller fish to feed of...

will the " Hydroid jellyfish " grow bigger ?

there is 5 fish in the tank
2 yellow clown gobies
2 ocellaris
1 yellow tang
but the tang always nip on the glass

no they will stay small and usually die off as your tank ages

oh okay i wanted to use glass scraper , if that is okay ?

I used to love squishing them with my magflot when I had them at the beginning of the tank. They go away as the tank's nutrient decreases (that's what I have been told).