I have some in a high tech n some in a low tech and each of them are growing like crazy !!! I wud highly recommend these mate. When I opened the box they came in I was shocked how big they were lolcarpking said:Thanks for the link £8.25 for 5 plants is a little steep but i dont mind if they are good quality.how are your's holding up after a month? do u have these in a high tec set up im only low tec so im hoping they will work out in my tank?