Well, I'm happy to report the male crab seems to be doing fine so far. He made his way around the background (maybe so as not to be eaten), so there he'll stay until he gets bigger and can defend himself.
I've done regular water testing ever since introducing the fish some 5 weeks ago, but I've never seen more than a very slight increase in ammonia, and no sign of nitrites/nitrates. Despite this, I decided to do the first water change today, since visible nasties were starting to accumulate in the sump behind the sponge filter. This was also my first use of the Python system and I must say it worked great - Another great tip from the AC board! I tried to use the Python to clean out the sump, but found that using my Magnum canister filter did a better job there. All-in-all the water change went very well. I guess I'll continue the water testing and just plan on monthly water changes unless I see some changes in the cycle. :huh:
I've done regular water testing ever since introducing the fish some 5 weeks ago, but I've never seen more than a very slight increase in ammonia, and no sign of nitrites/nitrates. Despite this, I decided to do the first water change today, since visible nasties were starting to accumulate in the sump behind the sponge filter. This was also my first use of the Python system and I must say it worked great - Another great tip from the AC board! I tried to use the Python to clean out the sump, but found that using my Magnum canister filter did a better job there. All-in-all the water change went very well. I guess I'll continue the water testing and just plan on monthly water changes unless I see some changes in the cycle. :huh: