If this makes it easier here is full tank info from my profile.
EHEIM Classic External Canister 2211 Filter,
Penn Plax CLEAR-FREE Undergravel Aquarium Filters,
Tetra Whisper Heater,
Aqua Culture air pump connected to under gravel filter bubblers and 1 air powered decoration.
Was using 2 AquaTech Power Heads on under gravel filter but removed do to excessive vibration noise, now just use the bubbler rods dropped down under gravel columns that came with it.
6 plastic plants, 3 plastic coral, air powered drinking skeleton.
2 Black Skirt Tetra
2 White Tetra
1 Sunburst Orange Tetra
1 Long-Finned Black-Skirt Tetra
2 Blue Gourami
2 Common Plecos
Started the EHEIM 2211 with new water in clean tank. I literally emptied the whole tank of everything, cleaned everything, re-added under gravel setup, gravel, deco, added fresh water, startup chemicals, ran for a little over a day to setup, re-added fish only not water fish were being kept in. 3-4 days later flow from EHEIM was drips, changed white filter pad, 3-4 days later flow was drips again, again and again for the last month.