I have had my tank up and running since October, with a horseshoe crab in the tank since December. In the past month, I added 10lbs of live rock and then yesterday added an invertebrate set that included (anenome, flame scallop, aiptasia, Snails, Lettuce Slug, and 2 polychaete worms).
The tank is 25gal and I replenish the water with new water every few weeks.
I checked the pH today and it was low at 7.8. Is there a way to increase the pH? Also my HSC has begun to bury itself under the anenome. Any advice is welcome.