i have a hangon protein skimmer/ refu on the sump but i only holds 1-2gal of water. but it just used to grow algea so that should be good for a 29 gal....
there isnt alot of flow in sand bed of the sump i have partition between the intake of the sump and the sand bed...how slow of flow are we talking?
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29 gal/ 10gal refugium with more things then I have space to list.
with a 7gal sea horse tank slowly in the works |