Good day all! I'm new to this forum. First off thank you Aquarium Co Op I love all your videos and information. I'm kind of new to fish keeping(a little over a year now) I will try to make this as shirt as I can. I have 5 indoor aquariums and a quite large outdoor pond with goldfish(comets and shubunkins) They did great over winter, so well they had babies in spring. So what to do with the babies since the stores nearby won't take them or they will "take care of them for me" ...I'm a roomparent and regular sub at my childrens school and we have lovely patios for planting etc. We moved rooms and got a new patio ove the summer perfect for an outdoor fish pond the children absolutely love. I have a HUGE problem though and I'm quite stumped as well as the teachers at the school. So I dug the pond, used my pond liner I got from lowes, made my diy filter with pump and tubing from lowes used a new flower pot have lava rock and inside of pillows throughout for filtration media and sealed the outspout with outdoor strong silicone. Have a small papyrus in and a couple hide pots. I first made the mistake using the schools water which is different from my at home well water. Unfortunately we had some floaters. So then I said let's wait a longer period for the chlorine and heavy metals to stabilize before more fish. We added mire fish everything was great then all of a sudden over night it was down to about 2-3 inches of water when we came in the next day. Instead of filling it up with school water, I took the fish out took them home and took it all apart to see if a rodent had chewed a hole in the liner and check all my plumbing (that's still new) wasn't leaking etc. Stumped nothing have no idea. So brought from home extra tarp to put underneath put the liner back in set it up filled it completely let it set running like normal only without fish for week and half, all is good so we added fish...Literally within a couple days it's happening again!!!!! What in the world could be happening? There is no leak anywhere and we're in the south but it's not sweltering weather to make it evaporate this quickly. Kids teachers and I are all starting to get bummed. Help please if you can !!! I added an old pic from the start when it was great and the other day
