Hi there!
I have two systems that I converted from ebb and flow over to sand. Unfortunately, the fish tanks are neither sloped nor parabola-shaped at the bottom to help solids get sucked up by my pump.
My pump is super strong and can handle up to 3/8″ solids, but even then, because the bottom of my tank is flat, a lot of detritus will still collect at the bottom.
Do you have any suggestions as to what I can do?
Thank you!
For the benefit of others, this was discussed in a private chat and I specifically asked for it to be shared here because I think it is a valuable lesson for all and a reminder that iAVs is designed like a ‘living machine’ where each part depends on the other to work in harmony. When parts of this machine are changed, then it is no longer in harmony….
We have privately come up with a solution that helps, but it involved time, labour, more parts and adds to the maintenance of the system so it’s not something which I am going to encourage by sharing here.
The first suggestion (for others) is to avoid this problem completely, by simply following the recommended iAVs designs and instructions provided.
Another suggestion to ‘fix’ a flat bottom tank would be to use damp sand, in the corners and along the edges to re-shape the bottom of the tank. Insert a liner over the top of the sand. This will reduce the size of the fish tank, but the effective removal of solids/fish ‘waste’ compensates for that.
A properly shaped tank ensures the plants get fed. It ensures the water quality is high and the fish are healthy.
Thank you – my next purpose-built system will be sure to have the right tank shape. Heck, it’s actually easier to make the liner U-shaped than push it flat against the bottom!!