Looking for some advice please, been ignoring the growing problem that I have lots of aptasia and now newer issue gha getting long In my 14 gallon bio cube. Thoughts on using Peppermint Shrimp, Emerald crab, tux urchin, nudibranch (do they have to be pairs)? I have 2 clowns and a cleaner shrimp and had a tailspot blenny that controlled algae for along time but he disappeared one day 6 mos ago and the clowns take out any new fish added so don’t think a filefish or blenny gonna be possible at this point. Cuc of blue/red hermits, turbo/astrea/nassarius snails. Some pics attached.