Moort82
New member
Yup and also they since their job is to eat parasites off fish and also part of their nutrition . They say that even if they are eating they will eventually die from malnutrition.
Which is total BS !
That's not entirely true but those that thrive on a captive diet are few and far between. It's the same for other species of fish such as copper bands, idols etc who may eat and look like they are doing well but then suddenly die. Who knows if this is diet related for certain but it's normally suggested as a factor.
You also have to question the usefulness of cleaner wrasse in a closed environment with so few clients. They'd service hundreds of fish naturally and with so few fish to feed in a tank can be a stresser rather than a help. A hungry cleaner will look to fish for food and if they don't have any parasites or want to be cleaned it can really annoy them.
At the end of the day what we keep in our tanks is our own decision but I remember an anecdote from a public aquarium. The tank was tens of thousands of gallons and had several hundred fish plus two pairs of cleaner wrasse (think they were hawaiian so may have been the wakiki). When asked how the tank was doing the reply was really well but we're overstocked by one pair of cleaners.