SuncrestReef Posted October 14, 2018 Share Posted October 14, 2018 (edited) Two weeks ago I set up my first quarantine tank. Up until then, I had just added fish and corals directly into my display tank since it was brand new and I had little to lose if something went wrong. But I wanted to add a Kole Tang to help tackle my macro algae problems, so I figured I would go the QT route now that my tank is more established. I picked up a nice Kole Tang, but within the first couple days I noticed large white bumps forming on its head and sides. I wasn't sure what it was and suspected possibly ich or lymphocystis. I started treating with PraziPro and within a couple days the white bumps were gone but it left behind scar tissue. Closer examination revealed missing flesh or divots. I finally figured out this was likely HLLE. As I researched HLLE, I learned that it can be caused by activated carbon. I didn't realize that the Tetra hang-on-back filter pump I placed on my quarantine tank used activated carbon in their filters. Tetra calls it "Stay Clean Technology", but nowhere in their documentation does it describe this is actually activated carbon inside the filter pads. Instead I learned this from 3rd party reviews. I removed the carbon filter cartridge and replaced it with clean filter pads. Hopefully the HLLE won't progress any more, but the damage is done. I'm just kicking myself for not more carefully researching this Tetra filter before putting it into use. Lesson learned. 😞 Edited October 14, 2018 by SuncrestReef 1 1 Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.