Get a better skimmer, aim higher than a weipro or marco.
Go for HnS, beckett, deltec or octopus if budget constrainted.
Think 2nd hand octopus only < 150.
a yellow and green. Ah beng or aqua marin might have, give them a call? those with lines are normally terror.
I have the yellow one, cute and useful.
I need gobies. Any recommendation?
A good skimmer is always recommended.
I have tried weipro and macro skimmer, I find their strength limited.
Try to get bekett[typo] , HnS, Deltec or octopus. A better skimmer improves the water quality greatly.
This is a very good read on how a tank is to be run. Wonderful tank !
All the basics are there.
Water change, 12 fishes in the 6 ft [low bio load], lots of flow and skimmer.