I have three of them and they do move the gravel around, but that’s not enough. They can’t possibly get all of the scraps.So I see hecklii in the background, are they not eating the scraps from the bottom? Maybe the gravel is preventing them from sifting, and a switch to sand (#20 mesh size like pool filter sand) would help them sift the bottom for scraps?
Each one is almost 18 inches. I also have a fire reel in there as well. So four eels technically.Need a plec which is NOT a wood eater. So bristlenose will work, as would gibbiceps although may grow too large.
Depends what you mean by cleaner fish though. Most plecs create more waste than the cleaning job they do is worth. If you are looking for something to tidy leftover food then bristlenose would work but they may also get to food before the eels and barge them off it. Alternatively if you are looking for something to sift sand and keep it sweet then geophagus but you may have this covered.
The gravel does make it harder than sand to sift for food, too much energy spent moving the gravel. If the hecklii are fed less, and the substrate is easier to go through, there's a good chance they will get much more scraps.I have three of them and they do move the gravel around, but that’s not enough. They can’t possibly get all of the scraps.
Yea that would be a 24 hour addition and they’d all be dead.Crayfish are good gravel sifters, but I can’t imagine the cichlids or eels letting them live long.