Nice tips on the ph. I did not know about the surface phenomena. very cool. At the moment there is a koralia 3..it says 850 GPH
....should that be sufficient for the 75?
Also as we have started looking closer under the light we are finding living things on the rocks. There are some tubes with little feathers coming out of them. One set has sort of greyish feathers and another set has a darkish orange-red. Does this sound familiar to anyone?
Going check out a new (to us) fish store tomorrow. We live in the mountains pretty far from a good selection of fish stores. The closest, about an hour away, has proven untrustworthy. The store tomorrow actually has articles of pets NOT to get so I'm hoping that is a good sign.