I use a wet/dry filter in my 180 gallon. In it I have a Goldentail, Banded, Yellowhead, and snowflake moray eels. The filter works great with my eels.
In my tank I have LR
, around 80 pounds, and my eels don't hide a lot, actually my goldentail is out swimming all the time. If you plan on keeping multiple eels I recommend having multiple hiding places. If not when it feeding times come you may have a lot of fighting and you may wake up one morining with one less eel. The general rule is if a fish can fit in the eel's mouth then it will be eaten, however, some eels (if a fish is too big) will rip chunks of flesh off of other fish including eels.
Now I am not saying you have to have LR
, but I am saying you may want to rethink about having only one hiding place. Multiple hiding places is IMO
the way to go. Remember every fish has its different personality weather it is a eel, triggerfish, angelfish, or blenny's. IMO
, a good rule of thumb is: you should have 1 hiding place for every fish in your tank.
hope this helps