Go with 8x4 footprint like fore mentioned. Some people call mini marbles what are actually just a bit smaller than typical because they are stunted from being in sub par conditions.What’s the bare minimum yu can keep
These mini marble at 5 in I’m a grow out / Quarantine tank and how big is it a requirement when they get to adult size living
Yup. This is trueLets be honest here..... WHEN was the last time you saw a Marble that was NOT a "mini"
They're ALL "mini" anymore. Just ask the sellers.... They'll reassure you regardless of the size of the parents. The parents that have probably been in the owners possession for a few years at best. Ever notice there's no old "minis" All seem to be 5 years or less old.
Just like any black ray hybrids.... IF there's any black ray in the mix it is immediately assumed to be BD.