So the lfs near me has a colony of yellow polyps for sale. The rock its on is probably 5"by5" maybe a little bigger with a ton of polyps and a maybe 5-10 zoas on it. Its 20$ I believe. Now the catch is the rock has a bunch of gha it. not so much as to wear the polyps are smothered because most are open but I was just wondering if it would be worth buying this?