The algae problem in my aquatics tank, housing Utricularia radiata and Australian Aldrovanda vesiculosa, has escalated to terribly frustrating proportions. The plants are still growing, but I fear that the algae may kill them in the future. I introduced a snail earlier this week in an attempt to control the spreading plague, but so far it seems to produce more droppings than its worth, which I worry may upset the pH balance. What is there to do?? It's just way too much hassle to take out the plants, empty out the aquarium (extremely heavy even at just 10 gallons), refill it (over Ű.00 worth of distilled water) and mix in peat, let the peat settle over the course of several days while trying to keep the plants alive in a temporary container, skim the floating crap from the peat off the top of the water, and reintroduce the plants, and then I just have to do it all over again in a few weeks. If this is my only option, then I am set to give up on aquatics in the near future, and until further notice. I really wanted to see my U. radiata flower and produce those wonderful floats that it's known for, but I don't see any signs of that happening anytime soon, especially with the algae taking over. And there's another problem: One of my goals in CP is to grow at least one species from each of the known carnivorous genera. For Utricularia, I can get around this by growing a nice terrestrial Utric. Not so for Aldrovanda, which is a monotypic genus, and of course entirely aquatic. Thankfully, however, it grows much slower than U. radiata, whose proliferation has lately been annoying me almost as much as the algae has! =Þ Can anyone offer any sort of viable solution that doesn't require all the toil and expense of refilling an aquarium every few weeks? I would be immensely grateful if someone could help me to save my interest in aquatic CPs, because the algae is killing it.