Ok, so I was at my local fish store Wonderful World Of Fish, to look at what was in stock since I haven't been there for about a month because of my car being crashed while parked:irked: and its finally fixed. I start talking to one of the workers who I'm pretty cool with. So we get into a conversation..hows your fish tank... it's fine...blah blah blah. So he finally asked me do I have a protein skimmer... no I don't have one.. he starts lecturing me on how I should get one its essential because at night when I get corals they'll have an all out war with toxins!!:scratch: So I'm like oookkk? but I've read many forums which people don't use skimmers.. and he's like "Well, you can try but when you get corals they bleach and die and all that other stuff.....So i ended up buying a Oceanic biocube protein skimmer which is so far a piece of crap... ok back to the question do I need a protein skimmer on my 20 gallon tank.. I do 5 gallon water changes every week.....



