Need advice for undrilled 90g BB tank, side-by-side sump, same water level.
Here are 2 versions: long (top) and short (bottom). Either will work.
Long:
I place some pictures to illustrate current state of water flow and plumbing, can delete them later - as you say.
Looks like a maze, sorry.
Now, plumbing is obscured:
Old photos, without corals:
Even older photos, with plumbing visible:
Principal drawings for a current state of plumbing:
Currently:
1. The sump is fed by 1" U-tube, return - by 1/2" flexible tubing from Eheim 1250 pump, 317 gph. Starts at the back end of the basket, directed down and along back wall.
Too strong flow for a my slow-moving and hiding fish (tassle filefish and antennata lion), created unusable spot in the tank.
2. Refugium bucket is fed by Maxi-Jet 600 PH, 160 gph, 1" flexible tubing passive return, to the front end of the bucket, 45 degree down along front glass. Tolerable, but preferably should be made lower.
3. Canister filter (I know, but current sump filtration is insufficient): Fluval 404, 300 gph, intolerable forceful flow, was added LifeGard CustomFlo, 2 spraybars and 1 jet. Top spraybar is directed 45o down, vertical - to the front. Jet - in the middle of the tank, to the left (in direction of the sump intake).
4. 2 Seio 620 powerheads, 600 gph each, soft flow, barely tolerable.
Left back top is directed onto front glass, reflected in-between 2 main rock masses. The second, left side wall, almost bottom - just along front glass to wash out front of the stones (the back is covered by sump return pump), and move debris in direction of the sump intake.
Short version:
Anyway, even 2000 gph can't keep debris removed and a lot of space is excluded from use because of concentrated flow. Could be because micron sock receives only 317 gph.
2 questions:
- How to rearrange and dissipate flow, so fish can use all the tank?
- How to plan the flow and which plumbing will be needed for an improved filtration variant? Here it is:
Canister filter and PH are removed. Filtration through the micron sock(s) in the sump. 2 pumps - the weak one (300 or 650 gph, any of them) works all the time, the strong one - Sequence Dart, 3000 gph, will be on intermittently - 3 times daily for 15 min only. It raises the h***, but it expected to be removed by this flow.
Here is tank, that uses this system.
Pitfalls:
- undrilled tank
- side sump
- slow moving fish, concentrated flow is unacceptable for them
- debris should be removed - contradiction to previous
- I ordered Sequence Dart (external, not in-sump) and Ocean Runner 2500 (in-sump, at my knowledge; can replace current sump pump (Eheim, 300 gph) or be used for an intense flow instead of Dart).
Any ideas on making things better and some practical points will be greatly appreciated.