I've had my betta mini bow 2.5 gallon tank for about 2 weeks, just added 3 guppies last week and my water is very cloudy, can anyone tell me if this is a bacterial bloom? And if so, what can I do? I've been doing partial water changes daily, using poland spring water. I have a Marina i25 filter in the tank, the water level is a little low so that the waterfall off the filter adds a small splash to oxygenate the water, I also have a hydro heater and my water temps are right in the middle of the green section of my floating thermometer. My guppies seem fine, they're active and eating. Any help/advice in this problem would be greatly appreciated