I think they do... Those are the reptile caves from petsmart... I wasn't sure if they were "aquarium safe" so I soaked em for a little over a week before adding to a tank with fish.... just in case...
I have 2 4' lightstrips with a total of 4x65 watts. The one on the left is 6700 and the other is 10000. I would like them both to be 6700 because I have heard they are better for growing plants. Thanks for the compliment imo planted tanks are much more pleasing to the eye and it gives my polys different layers to hang out on.
thouroughly cleaned and redid my tank the other day and got my MFK decal so heres a couple new pictures. MFK has gotten the better of me though and I'm looking to upgrade my tank shortly and convert the current 40g long into a sump