I inherited a red ear slider turtle. I have a 20 gallon tank and need a new filter. I have him in a 10 for right now till I get the 20 gl set up. I 'd like to do this tomorrow or by this weekend. I've been cleaning this turtle's tank every other day and just realized that's a big no no. What fliter would anyone recommend (who owns an aquatic or has owned one)? What experience do you have in cleaning? Is it weekly, bi-weekly or monthly? And, I'm a little finicky about seeing a tank dirty. Please advise. FYI: I have the abrasives, gravel, light and dock ready. I will also be putting a couple of minnow in the tank 1 x weekly. I have a busy life with small children, 3 dogs, 1 cat and now a turtle. I am constantly cleaning up excrements and am hoping that I could get a good filter along with moss to assist in having this tank clean for the turtle and for my eyes. I want to give this turtle a good aquatic home and hopefully I'll do right by him. So any help is appreciated.