i jsut got a new pleco and today is my norm water change day put him in the tank 14 hours ago in 4 min how long should i wait to do a water change? he dosent have his fins up yet so im guessing hes still not used to the tank i norm do 15-20%.... oh and any one know how to sink zucchini all the stuff i find people use forks and i dont want him to hurt him self