My Dad's Apple Snail. "It started having babies and more babies. At this point I had decided snails weren't for me. My dad has tried everything short of empting his tank and he still has the snails.  I find it entertaining. I have a 150 gal. tank with 4 under-gravel filter bubble tubes. My tubes were always getting dirty inside and are a pain to clean. so one day I decided to take one of the larger baby snails (1/4 inch) and put it in the tube. It is working great I now have one snail in each tube, the tubes are kept clean by the snails and the snails are contained to the tubes. I have had the snails in the tubes for two months and there are no snails outside the tubes. Thanks, Rob Van H."

Aquarium Gravel or Sand? "Hey guys, I have a 120 gallon tank with 2 oscars, lord knows who many Convicts becuase they keep spawing, 3 tinfoil Barbs and 1 Pleco. I have 2 Emperor 400's and I just added a Rena Filstar xP3. The tank has been up and running for about 11 months and the only problem that I've come across is the clearity of the water every now and then (about 5 times). I have about a half inch of gravel in the tank right now. My question is, would taking out the gravel and putting sand in the tank be a bad idea and if so why? Any advise would be greatly welcome. Thanks, Mike W."

Remove Betta Bubbles? "Hello, I recently got a new male betta and he seems to be doing well but I have one question. Last week he started making  his little bubbles at the top of the tank. I read on your site that he is ready to mate. All though I am not ready to breed him is it okay that when I freshin up his water I remove all the bubbles? Will he make more? I am assuming he will but I do not want to upset him. My other question is how often should i completly change his water and clean his rocks? I remove half the water twice a week like you recommended but I am wondering how often I should actually clean the whole tank. Please respond with any comments. Thank you, Caprice"

Pond Mates for Livebearers. "Hi, i have a 3400 litre (890 gallon) outdoor cement pond. currently i have mollies, guppies, platys and swordtails in the pond. (also molly fry). i have a few questions (0) will they cross breed? (1) what other fish can i keep in the pond which wont eat the fry of these livebearers. (2) what other fish can i keep so that it has a chance of breeding (so that their eggs are not eaten by livebearers). someone told me shubunkins lay a lot of eggs and a few have a good chance of survival. are there any others? (3) the temperature varies from 4 degree celcius to 43 degree celsius.(39F to 110F). will the livebearers survive?" Karthik M.