potatobob wrote:herpluvin wrote:Marine Biologist wrote:Do you think I could keep a few newts and some plecos together in a 20 gallon tank?
not a good idea at all.
plecos eat slime off of fish right? newts have more slime on them than any goldfish or koi, plus they have toes. a pleco of any sort would eat the newt's limbs and skin, causing it to stress out and die.
but if you want to get newts go for it!, but the only tankmates for newts are other newts and snails.
I don't think all plecos eat the slime off of fish. My clown pleco is a panaque, so his diet is mostly wood...... He has never tried to eat slime off of any of my community fish (guppies, platies, dwarf gourami, tetra, and swordtails). Mine has never been aggressive and just hangs on his log all day. However I do not know if they are compatible with newts.
the difference between most fish and amphibians is vast, plecos will go after any animal that produces huge amounts of slime. this includes: amphibians, goldfish, koi, Oscars and other large cichlids, and lungfish. these animals are extremely slimy(for one reason or another) and make easy targets for plecos, because most(not all) lack large, sharp teeth to shred flesh, so they hunt slower, slimy fish because they can suck the slime and the thin skin off. newts and salamanders, due to the fact that they have toes, give plecos an added bonus to go for.
while not all plecos are extreme meat eaters, some can be(there are species that only eat meat). my normal pleco(about 15 inches long) enjoys eating pieces of shrimp and catching feeder goldfish(its freaky, but he will chase our Oscar's feeder fish down and suck them to death...)