I always have algae growing in my aquarium as well as my turtle tank
Algae is pretty much the easiest thing to grow, any kind of aeration will help greatly, and of course tons of sunlight
Also, put as many flat surfaced rocks and such as possible in the jugs, the more surface area you have in there the more algae you will grow

Edit: Ive also noticed that algae seem to enjoy SPT quite a bit, Ive been using it with my bamboo, along with airstones in the water, and I have to clean the algae off the glass daily

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