fleas in my tank???

[MrKrabby]

that could be them. I never noticed them until recently they are all over the glass in my 50G tank. I also have a 100G tank in the same loop but never see them in there.

I have just started feeding zooplankton about 3 weeks ago and they may of taken off from that.

The only problem is I don't have any fish in this 50G tank and they are bothering my zoas and they will not open.

From the reading I just did sounds like I should go get a dragonet or goby

Thanks for the advice