so my driftwood is growing mold. i thought it was just because of all the fish food that had settled on it and rotted, but when we cleaned out the tank to add pure ammonia, i pulled the driftwood out and scrubbed it down and soaked it a bit. i just now noticed it has a bunch more white/grey fuzzy mold growing on it in the same spots as before. i researched it a bit, and it looks like this particular wood (mopani [i think] from the reptile section at petco [or petsmart]) has sap in it and will mold when submerged, then dried, then submerged again. from the info that i found it looks like if i just keep up scrubbing it off/siphoning it out, it will clear up in a couple weeks. anyone else have this happen??