Thanks for the tips, another thing I do is grow algae on smooth rocks in a jar full of water with liquid fertilizer in it and established tank water. Just set it in a sunny window sill and boo bam! done, then just scatter the rocks around (good sized rocks too for easy removal). Everybody gets their food and I just take them out and do it over at water change intervals.
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Shan's Custom made Lava Rock Caves n' Structures
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