I have a really expensive small chalice frag that doesn’t even have a mouth yet. Everything else in the tank is happy and growing including my other chalices. This one turned brown and started to die off on one corner. I was fortunately able to get it to stop dying. But I still am looking for as much advice as possible on getting it out of this critical condition one wrong move and it will most likely die. Should I try to spot feed it even though it doesn’t have a mouth. Will it benefit from it at all even if it a little?