I've been thinking about getting a sump for a few tanks. I'll DIY them, but I need to know how big of one I need. All tanks will have a DIY lily pipe spin outflow.
The first is for a 90g Angelfish tank. Either 6 juveniles, or a breeding pair of adults. A school of a dozen or two Bleeding Hearts, four BN plecos, and the Time-Out for Venezuela Rams that need it. It'll be heavily planted.
The second sump is for a 55g Apistogramma Biotope tank. The stock will be a breeding pair of Apistogramma A school of Glowlights at least a dozen strong, a few BN plecos, and a pair of Venezuala Rams. It might be planted, or I might not.
The last will be for a 55g Axolotl tank, which will have an egg crate lid with Pothos growing out of it and into the water.